Home / 157,489.35-217,353.75-89,516.54

Finding the Fourth Proportional to 157,489.35, 217,353.75 and 89,516.54

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Solution

The fourth proportional to 157,489.35, 217,353.75 and 89,516.54 is: 123,543.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,489.35 : 217,353.75 = 89,516.54 : x
  2. Step 2: Convert to fraction form
    157,489.35/217,353.75 = 89,516.54/x
  3. Step 3: Cross multiply
    157,489.35x = 217,353.75 × 89,516.54
  4. Step 4: Simplify right side
    157,489.35x = 19,456,755,656.03
  5. Step 5: Solve for x
    x = 19,456,755,656.03/157,489.35
  6. Step 6: Final answer
    x = 123,543.31

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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.