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Finding the Fourth Proportional to 145,149.70, 217,724.32 and 95,217.90

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Solution

The fourth proportional to 145,149.70, 217,724.32 and 95,217.90 is: 142,826.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,149.70 : 217,724.32 = 95,217.90 : x
  2. Step 2: Convert to fraction form
    145,149.70/217,724.32 = 95,217.90/x
  3. Step 3: Cross multiply
    145,149.70x = 217,724.32 × 95,217.90
  4. Step 4: Simplify right side
    145,149.70x = 20,731,252,529.33
  5. Step 5: Solve for x
    x = 20,731,252,529.33/145,149.70
  6. Step 6: Final answer
    x = 142,826.70

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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.