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Finding the Fourth Proportional to 159,598.43, 220,247.37 and 87,981.04

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Solution

The fourth proportional to 159,598.43, 220,247.37 and 87,981.04 is: 121,414.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,598.43 : 220,247.37 = 87,981.04 : x
  2. Step 2: Convert to fraction form
    159,598.43/220,247.37 = 87,981.04/x
  3. Step 3: Cross multiply
    159,598.43x = 220,247.37 × 87,981.04
  4. Step 4: Simplify right side
    159,598.43x = 19,377,591,568.63
  5. Step 5: Solve for x
    x = 19,377,591,568.63/159,598.43
  6. Step 6: Final answer
    x = 121,414.68

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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.