Home / 136,249.28-204,382.56-42,758.72

Finding the Fourth Proportional to 136,249.28, 204,382.56 and 42,758.72

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Solution

The fourth proportional to 136,249.28, 204,382.56 and 42,758.72 is: 64,140.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,249.28 : 204,382.56 = 42,758.72 : x
  2. Step 2: Convert to fraction form
    136,249.28/204,382.56 = 42,758.72/x
  3. Step 3: Cross multiply
    136,249.28x = 204,382.56 × 42,758.72
  4. Step 4: Simplify right side
    136,249.28x = 8,739,136,655.92
  5. Step 5: Solve for x
    x = 8,739,136,655.92/136,249.28
  6. Step 6: Final answer
    x = 64,140.79

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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.