Home / 120,872.10-181,280.82-45,965.55

Finding the Fourth Proportional to 120,872.10, 181,280.82 and 45,965.55

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Solution

The fourth proportional to 120,872.10, 181,280.82 and 45,965.55 is: 68,937.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,872.10 : 181,280.82 = 45,965.55 : x
  2. Step 2: Convert to fraction form
    120,872.10/181,280.82 = 45,965.55/x
  3. Step 3: Cross multiply
    120,872.10x = 181,280.82 × 45,965.55
  4. Step 4: Simplify right side
    120,872.10x = 8,332,672,595.75
  5. Step 5: Solve for x
    x = 8,332,672,595.75/120,872.10
  6. Step 6: Final answer
    x = 68,937.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.