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Finding the Fourth Proportional to 157,495.46, 217,339.00 and 85,876.88

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Solution

The fourth proportional to 157,495.46, 217,339.00 and 85,876.88 is: 118,507.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,495.46 : 217,339.00 = 85,876.88 : x
  2. Step 2: Convert to fraction form
    157,495.46/217,339.00 = 85,876.88/x
  3. Step 3: Cross multiply
    157,495.46x = 217,339.00 × 85,876.88
  4. Step 4: Simplify right side
    157,495.46x = 18,664,393,920.93
  5. Step 5: Solve for x
    x = 18,664,393,920.93/157,495.46
  6. Step 6: Final answer
    x = 118,507.51

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1.5x scale

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.