Home / 126,562.20-189,749.34-76,630.43

Finding the Fourth Proportional to 126,562.20, 189,749.34 and 76,630.43

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Solution

The fourth proportional to 126,562.20, 189,749.34 and 76,630.43 is: 114,888.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,562.20 : 189,749.34 = 76,630.43 : x
  2. Step 2: Convert to fraction form
    126,562.20/189,749.34 = 76,630.43/x
  3. Step 3: Cross multiply
    126,562.20x = 189,749.34 × 76,630.43
  4. Step 4: Simplify right side
    126,562.20x = 14,540,572,567.67
  5. Step 5: Solve for x
    x = 14,540,572,567.67/126,562.20
  6. Step 6: Final answer
    x = 114,888.75

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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.