Home / 121,450.55-182,121.15-54,856.40

Finding the Fourth Proportional to 121,450.55, 182,121.15 and 54,856.40

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Solution

The fourth proportional to 121,450.55, 182,121.15 and 54,856.40 is: 82,259.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,450.55 : 182,121.15 = 54,856.40 : x
  2. Step 2: Convert to fraction form
    121,450.55/182,121.15 = 54,856.40/x
  3. Step 3: Cross multiply
    121,450.55x = 182,121.15 × 54,856.40
  4. Step 4: Simplify right side
    121,450.55x = 9,990,510,652.86
  5. Step 5: Solve for x
    x = 9,990,510,652.86/121,450.55
  6. Step 6: Final answer
    x = 82,259.90

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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.