Home / 120,972.15-166,932.11-67,253.90

Finding the Fourth Proportional to 120,972.15, 166,932.11 and 67,253.90

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Solution

The fourth proportional to 120,972.15, 166,932.11 and 67,253.90 is: 92,805.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,972.15 : 166,932.11 = 67,253.90 : x
  2. Step 2: Convert to fraction form
    120,972.15/166,932.11 = 67,253.90/x
  3. Step 3: Cross multiply
    120,972.15x = 166,932.11 × 67,253.90
  4. Step 4: Simplify right side
    120,972.15x = 11,226,834,261.80
  5. Step 5: Solve for x
    x = 11,226,834,261.80/120,972.15
  6. Step 6: Final answer
    x = 92,805.11

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1.5x scale

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.