Home / 120,861.12-181,245.06-45,941.88

Finding the Fourth Proportional to 120,861.12, 181,245.06 and 45,941.88

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Solution

The fourth proportional to 120,861.12, 181,245.06 and 45,941.88 is: 68,895.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,861.12 : 181,245.06 = 45,941.88 : x
  2. Step 2: Convert to fraction form
    120,861.12/181,245.06 = 45,941.88/x
  3. Step 3: Cross multiply
    120,861.12x = 181,245.06 × 45,941.88
  4. Step 4: Simplify right side
    120,861.12x = 8,326,738,797.11
  5. Step 5: Solve for x
    x = 8,326,738,797.11/120,861.12
  6. Step 6: Final answer
    x = 68,895.10

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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.