Home / 110,902.20-166,353.30-81,377.70

Finding the Fourth Proportional to 110,902.20, 166,353.30 and 81,377.70

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Solution

The fourth proportional to 110,902.20, 166,353.30 and 81,377.70 is: 122,066.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,902.20 : 166,353.30 = 81,377.70 : x
  2. Step 2: Convert to fraction form
    110,902.20/166,353.30 = 81,377.70/x
  3. Step 3: Cross multiply
    110,902.20x = 166,353.30 × 81,377.70
  4. Step 4: Simplify right side
    110,902.20x = 13,537,448,941.41
  5. Step 5: Solve for x
    x = 13,537,448,941.41/110,902.20
  6. Step 6: Final answer
    x = 122,066.55

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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.