Home / 126,520.24-189,728.14-51,589.60

Finding the Fourth Proportional to 126,520.24, 189,728.14 and 51,589.60

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Solution

The fourth proportional to 126,520.24, 189,728.14 and 51,589.60 is: 77,363.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,520.24 : 189,728.14 = 51,589.60 : x
  2. Step 2: Convert to fraction form
    126,520.24/189,728.14 = 51,589.60/x
  3. Step 3: Cross multiply
    126,520.24x = 189,728.14 × 51,589.60
  4. Step 4: Simplify right side
    126,520.24x = 9,787,998,851.34
  5. Step 5: Solve for x
    x = 9,787,998,851.34/126,520.24
  6. Step 6: Final answer
    x = 77,363.11

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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.