Home / 136,517.57-188,395.13-76,092.05

Finding the Fourth Proportional to 136,517.57, 188,395.13 and 76,092.05

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Solution

The fourth proportional to 136,517.57, 188,395.13 and 76,092.05 is: 105,007.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,517.57 : 188,395.13 = 76,092.05 : x
  2. Step 2: Convert to fraction form
    136,517.57/188,395.13 = 76,092.05/x
  3. Step 3: Cross multiply
    136,517.57x = 188,395.13 × 76,092.05
  4. Step 4: Simplify right side
    136,517.57x = 14,335,371,859.46
  5. Step 5: Solve for x
    x = 14,335,371,859.46/136,517.57
  6. Step 6: Final answer
    x = 105,007.52

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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.