Home / 126,219.29-189,273.24-47,278.10

Finding the Fourth Proportional to 126,219.29, 189,273.24 and 47,278.10

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Solution

The fourth proportional to 126,219.29, 189,273.24 and 47,278.10 is: 70,896.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,219.29 : 189,273.24 = 47,278.10 : x
  2. Step 2: Convert to fraction form
    126,219.29/189,273.24 = 47,278.10/x
  3. Step 3: Cross multiply
    126,219.29x = 189,273.24 × 47,278.10
  4. Step 4: Simplify right side
    126,219.29x = 8,948,479,641.23
  5. Step 5: Solve for x
    x = 8,948,479,641.23/126,219.29
  6. Step 6: Final answer
    x = 70,896.29

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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.