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Finding the Fourth Proportional to 157,432.52, 217,250.44 and 85,810.97

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Solution

The fourth proportional to 157,432.52, 217,250.44 and 85,810.97 is: 118,415.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,432.52 : 217,250.44 = 85,810.97 : x
  2. Step 2: Convert to fraction form
    157,432.52/217,250.44 = 85,810.97/x
  3. Step 3: Cross multiply
    157,432.52x = 217,250.44 × 85,810.97
  4. Step 4: Simplify right side
    157,432.52x = 18,642,471,317.93
  5. Step 5: Solve for x
    x = 18,642,471,317.93/157,432.52
  6. Step 6: Final answer
    x = 118,415.63

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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.