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Finding the Fourth Proportional to 157,886.88, 217,793.52 and 101,234.40

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Solution

The fourth proportional to 157,886.88, 217,793.52 and 101,234.40 is: 139,645.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,886.88 : 217,793.52 = 101,234.40 : x
  2. Step 2: Convert to fraction form
    157,886.88/217,793.52 = 101,234.40/x
  3. Step 3: Cross multiply
    157,886.88x = 217,793.52 × 101,234.40
  4. Step 4: Simplify right side
    157,886.88x = 22,048,196,321.09
  5. Step 5: Solve for x
    x = 22,048,196,321.09/157,886.88
  6. Step 6: Final answer
    x = 139,645.53

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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.