Home / 126,430.24-189,711.60-82,046.56

Finding the Fourth Proportional to 126,430.24, 189,711.60 and 82,046.56

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Solution

The fourth proportional to 126,430.24, 189,711.60 and 82,046.56 is: 123,112.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,430.24 : 189,711.60 = 82,046.56 : x
  2. Step 2: Convert to fraction form
    126,430.24/189,711.60 = 82,046.56/x
  3. Step 3: Cross multiply
    126,430.24x = 189,711.60 × 82,046.56
  4. Step 4: Simplify right side
    126,430.24x = 15,565,184,172.10
  5. Step 5: Solve for x
    x = 15,565,184,172.10/126,430.24
  6. Step 6: Final answer
    x = 123,112.83

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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.