Home / 121,676.25-182,385.14-71,779.85

Finding the Fourth Proportional to 121,676.25, 182,385.14 and 71,779.85

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Solution

The fourth proportional to 121,676.25, 182,385.14 and 71,779.85 is: 107,593.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,676.25 : 182,385.14 = 71,779.85 : x
  2. Step 2: Convert to fraction form
    121,676.25/182,385.14 = 71,779.85/x
  3. Step 3: Cross multiply
    121,676.25x = 182,385.14 × 71,779.85
  4. Step 4: Simplify right side
    121,676.25x = 13,091,577,404.55
  5. Step 5: Solve for x
    x = 13,091,577,404.55/121,676.25
  6. Step 6: Final answer
    x = 107,593.53

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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.