Home / 151,972-209,721.44-84,904

Finding the Fourth Proportional to 151,972, 209,721.44 and 84,904

Calculator

Solution

The fourth proportional to 151,972, 209,721.44 and 84,904 is: 117,167.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,972 : 209,721.44 = 84,904 : x
  2. Step 2: Convert to fraction form
    151,972/209,721.44 = 84,904/x
  3. Step 3: Cross multiply
    151,972x = 209,721.44 × 84,904
  4. Step 4: Simplify right side
    151,972x = 17,806,189,141.76
  5. Step 5: Solve for x
    x = 17,806,189,141.76/151,972
  6. Step 6: Final answer
    x = 117,167.56

Related Problems

Find fourth proportional to 75,986, 104,860.72 and 42,452
Half scale
Find fourth proportional to 303,944, 419,442.88 and 169,808
Double scale
Find fourth proportional to 151,973, 209,722.82 and 84,905
Similar ratio
Find fourth proportional to 227,958, 314,582.16 and 127,356
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.