Home / 154,039.73-231,081.64-47,432.71

Finding the Fourth Proportional to 154,039.73, 231,081.64 and 47,432.71

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Solution

The fourth proportional to 154,039.73, 231,081.64 and 47,432.71 is: 71,155.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,039.73 : 231,081.64 = 47,432.71 : x
  2. Step 2: Convert to fraction form
    154,039.73/231,081.64 = 47,432.71/x
  3. Step 3: Cross multiply
    154,039.73x = 231,081.64 × 47,432.71
  4. Step 4: Simplify right side
    154,039.73x = 10,960,827,553.69
  5. Step 5: Solve for x
    x = 10,960,827,553.69/154,039.73
  6. Step 6: Final answer
    x = 71,155.85

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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.