Home / 126,861.30-189,903.15-74,114.10

Finding the Fourth Proportional to 126,861.30, 189,903.15 and 74,114.10

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Solution

The fourth proportional to 126,861.30, 189,903.15 and 74,114.10 is: 110,944.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,861.30 : 189,903.15 = 74,114.10 : x
  2. Step 2: Convert to fraction form
    126,861.30/189,903.15 = 74,114.10/x
  3. Step 3: Cross multiply
    126,861.30x = 189,903.15 × 74,114.10
  4. Step 4: Simplify right side
    126,861.30x = 14,074,501,049.42
  5. Step 5: Solve for x
    x = 14,074,501,049.42/126,861.30
  6. Step 6: Final answer
    x = 110,944.01

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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.