Home / 126,337.30-189,342.05-51,370.18

Finding the Fourth Proportional to 126,337.30, 189,342.05 and 51,370.18

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Solution

The fourth proportional to 126,337.30, 189,342.05 and 51,370.18 is: 76,988.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,337.30 : 189,342.05 = 51,370.18 : x
  2. Step 2: Convert to fraction form
    126,337.30/189,342.05 = 51,370.18/x
  3. Step 3: Cross multiply
    126,337.30x = 189,342.05 × 51,370.18
  4. Step 4: Simplify right side
    126,337.30x = 9,726,534,845.14
  5. Step 5: Solve for x
    x = 9,726,534,845.14/126,337.30
  6. Step 6: Final answer
    x = 76,988.63

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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.