Home / 126,409.20-189,579.24-47,517.36

Finding the Fourth Proportional to 126,409.20, 189,579.24 and 47,517.36

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Solution

The fourth proportional to 126,409.20, 189,579.24 and 47,517.36 is: 71,263.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,409.20 : 189,579.24 = 47,517.36 : x
  2. Step 2: Convert to fraction form
    126,409.20/189,579.24 = 47,517.36/x
  3. Step 3: Cross multiply
    126,409.20x = 189,579.24 × 47,517.36
  4. Step 4: Simplify right side
    126,409.20x = 9,008,304,995.61
  5. Step 5: Solve for x
    x = 9,008,304,995.61/126,409.20
  6. Step 6: Final answer
    x = 71,263.05

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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.