Home / 126,475.20-189,723.60-43,369.20

Finding the Fourth Proportional to 126,475.20, 189,723.60 and 43,369.20

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Solution

The fourth proportional to 126,475.20, 189,723.60 and 43,369.20 is: 65,057.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,475.20 : 189,723.60 = 43,369.20 : x
  2. Step 2: Convert to fraction form
    126,475.20/189,723.60 = 43,369.20/x
  3. Step 3: Cross multiply
    126,475.20x = 189,723.60 × 43,369.20
  4. Step 4: Simplify right side
    126,475.20x = 8,228,160,753.12
  5. Step 5: Solve for x
    x = 8,228,160,753.12/126,475.20
  6. Step 6: Final answer
    x = 65,057.50

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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.