Home / 121,454.55-182,127.15-54,860.40

Finding the Fourth Proportional to 121,454.55, 182,127.15 and 54,860.40

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Solution

The fourth proportional to 121,454.55, 182,127.15 and 54,860.40 is: 82,265.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,454.55 : 182,127.15 = 54,860.40 : x
  2. Step 2: Convert to fraction form
    121,454.55/182,127.15 = 54,860.40/x
  3. Step 3: Cross multiply
    121,454.55x = 182,127.15 × 54,860.40
  4. Step 4: Simplify right side
    121,454.55x = 9,991,568,299.86
  5. Step 5: Solve for x
    x = 9,991,568,299.86/121,454.55
  6. Step 6: Final answer
    x = 82,265.90

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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.