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Finding the Fourth Proportional to 157,363.59, 217,159.02 and 85,744.20

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Solution

The fourth proportional to 157,363.59, 217,159.02 and 85,744.20 is: 118,325.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,363.59 : 217,159.02 = 85,744.20 : x
  2. Step 2: Convert to fraction form
    157,363.59/217,159.02 = 85,744.20/x
  3. Step 3: Cross multiply
    157,363.59x = 217,159.02 × 85,744.20
  4. Step 4: Simplify right side
    157,363.59x = 18,620,126,442.68
  5. Step 5: Solve for x
    x = 18,620,126,442.68/157,363.59
  6. Step 6: Final answer
    x = 118,325.51

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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.