Home / 126,082.20-189,123.30-47,186.18

Finding the Fourth Proportional to 126,082.20, 189,123.30 and 47,186.18

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Solution

The fourth proportional to 126,082.20, 189,123.30 and 47,186.18 is: 70,779.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,082.20 : 189,123.30 = 47,186.18 : x
  2. Step 2: Convert to fraction form
    126,082.20/189,123.30 = 47,186.18/x
  3. Step 3: Cross multiply
    126,082.20x = 189,123.30 × 47,186.18
  4. Step 4: Simplify right side
    126,082.20x = 8,924,005,130.38
  5. Step 5: Solve for x
    x = 8,924,005,130.38/126,082.20
  6. Step 6: Final answer
    x = 70,779.26

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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.