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Finding the Fourth Proportional to 143,761.04, 215,630.04 and 38,579.60

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Solution

The fourth proportional to 143,761.04, 215,630.04 and 38,579.60 is: 57,866.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,761.04 : 215,630.04 = 38,579.60 : x
  2. Step 2: Convert to fraction form
    143,761.04/215,630.04 = 38,579.60/x
  3. Step 3: Cross multiply
    143,761.04x = 215,630.04 × 38,579.60
  4. Step 4: Simplify right side
    143,761.04x = 8,318,920,691.18
  5. Step 5: Solve for x
    x = 8,318,920,691.18/143,761.04
  6. Step 6: Final answer
    x = 57,866.31

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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.