Home / 132,389.04-198,649.36-82,456.48

Finding the Fourth Proportional to 132,389.04, 198,649.36 and 82,456.48

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Solution

The fourth proportional to 132,389.04, 198,649.36 and 82,456.48 is: 123,725.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,389.04 : 198,649.36 = 82,456.48 : x
  2. Step 2: Convert to fraction form
    132,389.04/198,649.36 = 82,456.48/x
  3. Step 3: Cross multiply
    132,389.04x = 198,649.36 × 82,456.48
  4. Step 4: Simplify right side
    132,389.04x = 16,379,926,979.85
  5. Step 5: Solve for x
    x = 16,379,926,979.85/132,389.04
  6. Step 6: Final answer
    x = 123,725.70

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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.