Home / 159,821.52-239,358.72-126,316.68

Finding the Fourth Proportional to 159,821.52, 239,358.72 and 126,316.68

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Solution

The fourth proportional to 159,821.52, 239,358.72 and 126,316.68 is: 189,179.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,821.52 : 239,358.72 = 126,316.68 : x
  2. Step 2: Convert to fraction form
    159,821.52/239,358.72 = 126,316.68/x
  3. Step 3: Cross multiply
    159,821.52x = 239,358.72 × 126,316.68
  4. Step 4: Simplify right side
    159,821.52x = 30,234,998,839.45
  5. Step 5: Solve for x
    x = 30,234,998,839.45/159,821.52
  6. Step 6: Final answer
    x = 189,179.77

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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.