Home / 143,531.94-215,319.78-73,387.56

Finding the Fourth Proportional to 143,531.94, 215,319.78 and 73,387.56

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Solution

The fourth proportional to 143,531.94, 215,319.78 and 73,387.56 is: 110,092.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,531.94 : 215,319.78 = 73,387.56 : x
  2. Step 2: Convert to fraction form
    143,531.94/215,319.78 = 73,387.56/x
  3. Step 3: Cross multiply
    143,531.94x = 215,319.78 × 73,387.56
  4. Step 4: Simplify right side
    143,531.94x = 15,801,793,273.94
  5. Step 5: Solve for x
    x = 15,801,793,273.94/143,531.94
  6. Step 6: Final answer
    x = 110,092.52

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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.