Home / 121,865.96-182,589.84-109,539.92

Finding the Fourth Proportional to 121,865.96, 182,589.84 and 109,539.92

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Solution

The fourth proportional to 121,865.96, 182,589.84 and 109,539.92 is: 164,121.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,865.96 : 182,589.84 = 109,539.92 : x
  2. Step 2: Convert to fraction form
    121,865.96/182,589.84 = 109,539.92/x
  3. Step 3: Cross multiply
    121,865.96x = 182,589.84 × 109,539.92
  4. Step 4: Simplify right side
    121,865.96x = 20,000,876,466.41
  5. Step 5: Solve for x
    x = 20,000,876,466.41/121,865.96
  6. Step 6: Final answer
    x = 164,121.93

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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.