Home / 121,740.20-182,610.30-92,215.70

Finding the Fourth Proportional to 121,740.20, 182,610.30 and 92,215.70

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Solution

The fourth proportional to 121,740.20, 182,610.30 and 92,215.70 is: 138,323.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,740.20 : 182,610.30 = 92,215.70 : x
  2. Step 2: Convert to fraction form
    121,740.20/182,610.30 = 92,215.70/x
  3. Step 3: Cross multiply
    121,740.20x = 182,610.30 × 92,215.70
  4. Step 4: Simplify right side
    121,740.20x = 16,839,536,641.71
  5. Step 5: Solve for x
    x = 16,839,536,641.71/121,740.20
  6. Step 6: Final answer
    x = 138,323.55

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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.