Home / 136,380.38-204,696.71-68,959.95

Finding the Fourth Proportional to 136,380.38, 204,696.71 and 68,959.95

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Solution

The fourth proportional to 136,380.38, 204,696.71 and 68,959.95 is: 103,503.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,380.38 : 204,696.71 = 68,959.95 : x
  2. Step 2: Convert to fraction form
    136,380.38/204,696.71 = 68,959.95/x
  3. Step 3: Cross multiply
    136,380.38x = 204,696.71 × 68,959.95
  4. Step 4: Simplify right side
    136,380.38x = 14,115,875,591.14
  5. Step 5: Solve for x
    x = 14,115,875,591.14/136,380.38
  6. Step 6: Final answer
    x = 103,503.71

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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.