Home / 120,822.87-166,741.13-67,108.11

Finding the Fourth Proportional to 120,822.87, 166,741.13 and 67,108.11

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Solution

The fourth proportional to 120,822.87, 166,741.13 and 67,108.11 is: 92,612.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,822.87 : 166,741.13 = 67,108.11 : x
  2. Step 2: Convert to fraction form
    120,822.87/166,741.13 = 67,108.11/x
  3. Step 3: Cross multiply
    120,822.87x = 166,741.13 × 67,108.11
  4. Step 4: Simplify right side
    120,822.87x = 11,189,681,758.02
  5. Step 5: Solve for x
    x = 11,189,681,758.02/120,822.87
  6. Step 6: Final answer
    x = 92,612.28

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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.