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Finding the Fourth Proportional to 157,814, 217,726.68 and 93,269.52

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Solution

The fourth proportional to 157,814, 217,726.68 and 93,269.52 is: 128,678.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,814 : 217,726.68 = 93,269.52 : x
  2. Step 2: Convert to fraction form
    157,814/217,726.68 = 93,269.52/x
  3. Step 3: Cross multiply
    157,814x = 217,726.68 × 93,269.52
  4. Step 4: Simplify right side
    157,814x = 20,307,262,934.79
  5. Step 5: Solve for x
    x = 20,307,262,934.79/157,814
  6. Step 6: Final answer
    x = 128,678.46

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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.