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Finding the Fourth Proportional to 157,654.69, 217,570.55 and 88,767.86

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Solution

The fourth proportional to 157,654.69, 217,570.55 and 88,767.86 is: 122,503.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,654.69 : 217,570.55 = 88,767.86 : x
  2. Step 2: Convert to fraction form
    157,654.69/217,570.55 = 88,767.86/x
  3. Step 3: Cross multiply
    157,654.69x = 217,570.55 × 88,767.86
  4. Step 4: Simplify right side
    157,654.69x = 19,313,270,590.83
  5. Step 5: Solve for x
    x = 19,313,270,590.83/157,654.69
  6. Step 6: Final answer
    x = 122,503.62

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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.