Home / 120,630.59-166,490.17-66,932.90

Finding the Fourth Proportional to 120,630.59, 166,490.17 and 66,932.90

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Solution

The fourth proportional to 120,630.59, 166,490.17 and 66,932.90 is: 92,378.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,630.59 : 166,490.17 = 66,932.90 : x
  2. Step 2: Convert to fraction form
    120,630.59/166,490.17 = 66,932.90/x
  3. Step 3: Cross multiply
    120,630.59x = 166,490.17 × 66,932.90
  4. Step 4: Simplify right side
    120,630.59x = 11,143,669,899.59
  5. Step 5: Solve for x
    x = 11,143,669,899.59/120,630.59
  6. Step 6: Final answer
    x = 92,378.47

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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.