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Finding the Fourth Proportional to 134,719.70, 202,079.55 and 45,959.90

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Solution

The fourth proportional to 134,719.70, 202,079.55 and 45,959.90 is: 68,939.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,719.70 : 202,079.55 = 45,959.90 : x
  2. Step 2: Convert to fraction form
    134,719.70/202,079.55 = 45,959.90/x
  3. Step 3: Cross multiply
    134,719.70x = 202,079.55 × 45,959.90
  4. Step 4: Simplify right side
    134,719.70x = 9,287,555,910.05
  5. Step 5: Solve for x
    x = 9,287,555,910.05/134,719.70
  6. Step 6: Final answer
    x = 68,939.85

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Similar ratio
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1.5x scale

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.