Home / 126,456.72-189,539.16-47,520.48

Finding the Fourth Proportional to 126,456.72, 189,539.16 and 47,520.48

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Solution

The fourth proportional to 126,456.72, 189,539.16 and 47,520.48 is: 71,225.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,456.72 : 189,539.16 = 47,520.48 : x
  2. Step 2: Convert to fraction form
    126,456.72/189,539.16 = 47,520.48/x
  3. Step 3: Cross multiply
    126,456.72x = 189,539.16 × 47,520.48
  4. Step 4: Simplify right side
    126,456.72x = 9,006,991,862.00
  5. Step 5: Solve for x
    x = 9,006,991,862.00/126,456.72
  6. Step 6: Final answer
    x = 71,225.89

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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.