Home / 121,902.85-182,788.51-55,306.63

Finding the Fourth Proportional to 121,902.85, 182,788.51 and 55,306.63

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Solution

The fourth proportional to 121,902.85, 182,788.51 and 55,306.63 is: 82,930.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,902.85 : 182,788.51 = 55,306.63 : x
  2. Step 2: Convert to fraction form
    121,902.85/182,788.51 = 55,306.63/x
  3. Step 3: Cross multiply
    121,902.85x = 182,788.51 × 55,306.63
  4. Step 4: Simplify right side
    121,902.85x = 10,109,416,490.82
  5. Step 5: Solve for x
    x = 10,109,416,490.82/121,902.85
  6. Step 6: Final answer
    x = 82,930.11

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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.