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Finding the Fourth Proportional to 129,842.92, 195,228.06 and 119,578.60

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Solution

The fourth proportional to 129,842.92, 195,228.06 and 119,578.60 is: 179,794.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,842.92 : 195,228.06 = 119,578.60 : x
  2. Step 2: Convert to fraction form
    129,842.92/195,228.06 = 119,578.60/x
  3. Step 3: Cross multiply
    129,842.92x = 195,228.06 × 119,578.60
  4. Step 4: Simplify right side
    129,842.92x = 23,345,098,095.52
  5. Step 5: Solve for x
    x = 23,345,098,095.52/129,842.92
  6. Step 6: Final answer
    x = 179,794.93

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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.