Home / 71,139-153,303

Finding the Third Proportional to 71,139 and 153,303

Calculator

Solution

The third proportional to 71,139 and 153,303 is: 330,364.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,139 : 153,303 = 153,303 : x
  2. Step 2: Convert to fraction form
    71,139/153,303 = 153,303/x
  3. Step 3: Cross multiply
    71,139x = 153,303 × 153,303
  4. Step 4: Simplify right side
    71,139x = 23,501,809,809
  5. Step 5: Solve for x
    x = 23,501,809,809/71,139
  6. Step 6: Final answer
    x = 330,364.64

Related Problems

Find third proportional to 35,569.50 and 76,651.50
Half scale
Find third proportional to 142,278 and 306,606
Double scale
Find third proportional to 71,141 and 153,307
Similar ratio
Find third proportional to 106,708.50 and 229,954.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.