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Finding the Fourth Proportional to 159,489.62, 220,096.22 and 87,869.46

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Solution

The fourth proportional to 159,489.62, 220,096.22 and 87,869.46 is: 121,260.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,489.62 : 220,096.22 = 87,869.46 : x
  2. Step 2: Convert to fraction form
    159,489.62/220,096.22 = 87,869.46/x
  3. Step 3: Cross multiply
    159,489.62x = 220,096.22 × 87,869.46
  4. Step 4: Simplify right side
    159,489.62x = 19,339,735,999.44
  5. Step 5: Solve for x
    x = 19,339,735,999.44/159,489.62
  6. Step 6: Final answer
    x = 121,260.15

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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.