Home / 136,197.90-187,901.52-84,491.10

Finding the Fourth Proportional to 136,197.90, 187,901.52 and 84,491.10

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Solution

The fourth proportional to 136,197.90, 187,901.52 and 84,491.10 is: 116,565.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,197.90 : 187,901.52 = 84,491.10 : x
  2. Step 2: Convert to fraction form
    136,197.90/187,901.52 = 84,491.10/x
  3. Step 3: Cross multiply
    136,197.90x = 187,901.52 × 84,491.10
  4. Step 4: Simplify right side
    136,197.90x = 15,876,006,116.47
  5. Step 5: Solve for x
    x = 15,876,006,116.47/136,197.90
  6. Step 6: Final answer
    x = 116,565.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.