Home / 132,429.18-182,755.87-72,003.90

Finding the Fourth Proportional to 132,429.18, 182,755.87 and 72,003.90

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Solution

The fourth proportional to 132,429.18, 182,755.87 and 72,003.90 is: 99,367.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,429.18 : 182,755.87 = 72,003.90 : x
  2. Step 2: Convert to fraction form
    132,429.18/182,755.87 = 72,003.90/x
  3. Step 3: Cross multiply
    132,429.18x = 182,755.87 × 72,003.90
  4. Step 4: Simplify right side
    132,429.18x = 13,159,135,387.89
  5. Step 5: Solve for x
    x = 13,159,135,387.89/132,429.18
  6. Step 6: Final answer
    x = 99,367.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.