Home / 121,943.82-182,790.18-69,241.98

Finding the Fourth Proportional to 121,943.82, 182,790.18 and 69,241.98

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Solution

The fourth proportional to 121,943.82, 182,790.18 and 69,241.98 is: 103,791.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,943.82 : 182,790.18 = 69,241.98 : x
  2. Step 2: Convert to fraction form
    121,943.82/182,790.18 = 69,241.98/x
  3. Step 3: Cross multiply
    121,943.82x = 182,790.18 × 69,241.98
  4. Step 4: Simplify right side
    121,943.82x = 12,656,753,987.76
  5. Step 5: Solve for x
    x = 12,656,753,987.76/121,943.82
  6. Step 6: Final answer
    x = 103,791.68

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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.