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Finding the Fourth Proportional to 159,513.10, 239,212.05 and 80,601.10

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Solution

The fourth proportional to 159,513.10, 239,212.05 and 80,601.10 is: 120,872.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,513.10 : 239,212.05 = 80,601.10 : x
  2. Step 2: Convert to fraction form
    159,513.10/239,212.05 = 80,601.10/x
  3. Step 3: Cross multiply
    159,513.10x = 239,212.05 × 80,601.10
  4. Step 4: Simplify right side
    159,513.10x = 19,280,754,363.26
  5. Step 5: Solve for x
    x = 19,280,754,363.26/159,513.10
  6. Step 6: Final answer
    x = 120,872.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.