Home / 159,755.17-220,535.52-137,864.36

Finding the Fourth Proportional to 159,755.17, 220,535.52 and 137,864.36

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Solution

The fourth proportional to 159,755.17, 220,535.52 and 137,864.36 is: 190,316.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,755.17 : 220,535.52 = 137,864.36 : x
  2. Step 2: Convert to fraction form
    159,755.17/220,535.52 = 137,864.36/x
  3. Step 3: Cross multiply
    159,755.17x = 220,535.52 × 137,864.36
  4. Step 4: Simplify right side
    159,755.17x = 30,403,988,528.75
  5. Step 5: Solve for x
    x = 30,403,988,528.75/159,755.17
  6. Step 6: Final answer
    x = 190,316.15

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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.