Home / 120,512.84-166,306.05-66,796.70

Finding the Fourth Proportional to 120,512.84, 166,306.05 and 66,796.70

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Solution

The fourth proportional to 120,512.84, 166,306.05 and 66,796.70 is: 92,178.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,512.84 : 166,306.05 = 66,796.70 : x
  2. Step 2: Convert to fraction form
    120,512.84/166,306.05 = 66,796.70/x
  3. Step 3: Cross multiply
    120,512.84x = 166,306.05 × 66,796.70
  4. Step 4: Simplify right side
    120,512.84x = 11,108,694,498.50
  5. Step 5: Solve for x
    x = 11,108,694,498.50/120,512.84
  6. Step 6: Final answer
    x = 92,178.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.