Home / 151,340.28-208,851-83,357.51

Finding the Fourth Proportional to 151,340.28, 208,851 and 83,357.51

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Solution

The fourth proportional to 151,340.28, 208,851 and 83,357.51 is: 115,034.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,340.28 : 208,851 = 83,357.51 : x
  2. Step 2: Convert to fraction form
    151,340.28/208,851 = 83,357.51/x
  3. Step 3: Cross multiply
    151,340.28x = 208,851 × 83,357.51
  4. Step 4: Simplify right side
    151,340.28x = 17,409,298,276.76
  5. Step 5: Solve for x
    x = 17,409,298,276.76/151,340.28
  6. Step 6: Final answer
    x = 115,034.14

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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.