Home / 141,297.28-211,773.76-78,114.88

Finding the Fourth Proportional to 141,297.28, 211,773.76 and 78,114.88

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Solution

The fourth proportional to 141,297.28, 211,773.76 and 78,114.88 is: 117,077.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,297.28 : 211,773.76 = 78,114.88 : x
  2. Step 2: Convert to fraction form
    141,297.28/211,773.76 = 78,114.88/x
  3. Step 3: Cross multiply
    141,297.28x = 211,773.76 × 78,114.88
  4. Step 4: Simplify right side
    141,297.28x = 16,542,681,849.55
  5. Step 5: Solve for x
    x = 16,542,681,849.55/141,297.28
  6. Step 6: Final answer
    x = 117,077.14

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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.