Home / 143,781.44-215,344.11-126,963.50

Finding the Fourth Proportional to 143,781.44, 215,344.11 and 126,963.50

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Solution

The fourth proportional to 143,781.44, 215,344.11 and 126,963.50 is: 190,155.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,781.44 : 215,344.11 = 126,963.50 : x
  2. Step 2: Convert to fraction form
    143,781.44/215,344.11 = 126,963.50/x
  3. Step 3: Cross multiply
    143,781.44x = 215,344.11 × 126,963.50
  4. Step 4: Simplify right side
    143,781.44x = 27,340,841,909.99
  5. Step 5: Solve for x
    x = 27,340,841,909.99/143,781.44
  6. Step 6: Final answer
    x = 190,155.57

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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.