Home / 129,979.92-194,968.89-53,042.61

Finding the Fourth Proportional to 129,979.92, 194,968.89 and 53,042.61

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Solution

The fourth proportional to 129,979.92, 194,968.89 and 53,042.61 is: 79,563.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,979.92 : 194,968.89 = 53,042.61 : x
  2. Step 2: Convert to fraction form
    129,979.92/194,968.89 = 53,042.61/x
  3. Step 3: Cross multiply
    129,979.92x = 194,968.89 × 53,042.61
  4. Step 4: Simplify right side
    129,979.92x = 10,341,658,794.40
  5. Step 5: Solve for x
    x = 10,341,658,794.40/129,979.92
  6. Step 6: Final answer
    x = 79,563.51

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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.