Home / 157,747.68-217,710.87-89,781.18

Finding the Fourth Proportional to 157,747.68, 217,710.87 and 89,781.18

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Solution

The fourth proportional to 157,747.68, 217,710.87 and 89,781.18 is: 123,908.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,747.68 : 217,710.87 = 89,781.18 : x
  2. Step 2: Convert to fraction form
    157,747.68/217,710.87 = 89,781.18/x
  3. Step 3: Cross multiply
    157,747.68x = 217,710.87 × 89,781.18
  4. Step 4: Simplify right side
    157,747.68x = 19,546,338,807.43
  5. Step 5: Solve for x
    x = 19,546,338,807.43/157,747.68
  6. Step 6: Final answer
    x = 123,908.88

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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.