Home / 136,279.17-204,427.41-42,788.61

Finding the Fourth Proportional to 136,279.17, 204,427.41 and 42,788.61

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Solution

The fourth proportional to 136,279.17, 204,427.41 and 42,788.61 is: 64,185.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,279.17 : 204,427.41 = 42,788.61 : x
  2. Step 2: Convert to fraction form
    136,279.17/204,427.41 = 42,788.61/x
  3. Step 3: Cross multiply
    136,279.17x = 204,427.41 × 42,788.61
  4. Step 4: Simplify right side
    136,279.17x = 8,747,164,719.80
  5. Step 5: Solve for x
    x = 8,747,164,719.80/136,279.17
  6. Step 6: Final answer
    x = 64,185.63

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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.