Home / 120,695.48-166,561.56-66,983.96

Finding the Fourth Proportional to 120,695.48, 166,561.56 and 66,983.96

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Solution

The fourth proportional to 120,695.48, 166,561.56 and 66,983.96 is: 92,438.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,695.48 : 166,561.56 = 66,983.96 : x
  2. Step 2: Convert to fraction form
    120,695.48/166,561.56 = 66,983.96/x
  3. Step 3: Cross multiply
    120,695.48x = 166,561.56 × 66,983.96
  4. Step 4: Simplify right side
    120,695.48x = 11,156,952,872.58
  5. Step 5: Solve for x
    x = 11,156,952,872.58/120,695.48
  6. Step 6: Final answer
    x = 92,438.86

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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.