Home / 132,390.40-182,699.76-71,961.04

Finding the Fourth Proportional to 132,390.40, 182,699.76 and 71,961.04

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Solution

The fourth proportional to 132,390.40, 182,699.76 and 71,961.04 is: 99,306.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,390.40 : 182,699.76 = 71,961.04 : x
  2. Step 2: Convert to fraction form
    132,390.40/182,699.76 = 71,961.04/x
  3. Step 3: Cross multiply
    132,390.40x = 182,699.76 × 71,961.04
  4. Step 4: Simplify right side
    132,390.40x = 13,147,264,737.35
  5. Step 5: Solve for x
    x = 13,147,264,737.35/132,390.40
  6. Step 6: Final answer
    x = 99,306.78

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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.