Home / 157,742.12-217,681.17-89,757.56

Finding the Fourth Proportional to 157,742.12, 217,681.17 and 89,757.56

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Solution

The fourth proportional to 157,742.12, 217,681.17 and 89,757.56 is: 123,863.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,742.12 : 217,681.17 = 89,757.56 : x
  2. Step 2: Convert to fraction form
    157,742.12/217,681.17 = 89,757.56/x
  3. Step 3: Cross multiply
    157,742.12x = 217,681.17 × 89,757.56
  4. Step 4: Simplify right side
    157,742.12x = 19,538,530,677.15
  5. Step 5: Solve for x
    x = 19,538,530,677.15/157,742.12
  6. Step 6: Final answer
    x = 123,863.75

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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.