Home / 136,139.97-187,846.25-82,429.95

Finding the Fourth Proportional to 136,139.97, 187,846.25 and 82,429.95

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Solution

The fourth proportional to 136,139.97, 187,846.25 and 82,429.95 is: 113,737.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,139.97 : 187,846.25 = 82,429.95 : x
  2. Step 2: Convert to fraction form
    136,139.97/187,846.25 = 82,429.95/x
  3. Step 3: Cross multiply
    136,139.97x = 187,846.25 × 82,429.95
  4. Step 4: Simplify right side
    136,139.97x = 15,484,156,995.19
  5. Step 5: Solve for x
    x = 15,484,156,995.19/136,139.97
  6. Step 6: Final answer
    x = 113,737.04

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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.