Home / 157,620.38-217,516.14-101,031.89

Finding the Fourth Proportional to 157,620.38, 217,516.14 and 101,031.89

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Solution

The fourth proportional to 157,620.38, 217,516.14 and 101,031.89 is: 139,424.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,620.38 : 217,516.14 = 101,031.89 : x
  2. Step 2: Convert to fraction form
    157,620.38/217,516.14 = 101,031.89/x
  3. Step 3: Cross multiply
    157,620.38x = 217,516.14 × 101,031.89
  4. Step 4: Simplify right side
    157,620.38x = 21,976,065,642.12
  5. Step 5: Solve for x
    x = 21,976,065,642.12/157,620.38
  6. Step 6: Final answer
    x = 139,424.02

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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.