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Finding the Fourth Proportional to 159,073.92, 219,522.15 and 87,455.16

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Solution

The fourth proportional to 159,073.92, 219,522.15 and 87,455.16 is: 120,688.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,073.92 : 219,522.15 = 87,455.16 : x
  2. Step 2: Convert to fraction form
    159,073.92/219,522.15 = 87,455.16/x
  3. Step 3: Cross multiply
    159,073.92x = 219,522.15 × 87,455.16
  4. Step 4: Simplify right side
    159,073.92x = 19,198,344,751.79
  5. Step 5: Solve for x
    x = 19,198,344,751.79/159,073.92
  6. Step 6: Final answer
    x = 120,688.20

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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.