Home / 120,847.70-181,185.15-54,233.30

Finding the Fourth Proportional to 120,847.70, 181,185.15 and 54,233.30

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Solution

The fourth proportional to 120,847.70, 181,185.15 and 54,233.30 is: 81,311.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,847.70 : 181,185.15 = 54,233.30 : x
  2. Step 2: Convert to fraction form
    120,847.70/181,185.15 = 54,233.30/x
  3. Step 3: Cross multiply
    120,847.70x = 181,185.15 × 54,233.30
  4. Step 4: Simplify right side
    120,847.70x = 9,826,268,595.50
  5. Step 5: Solve for x
    x = 9,826,268,595.50/120,847.70
  6. Step 6: Final answer
    x = 81,311.18

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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.