Home / 126,842.88-175,023.36-73,129.92

Finding the Fourth Proportional to 126,842.88, 175,023.36 and 73,129.92

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Solution

The fourth proportional to 126,842.88, 175,023.36 and 73,129.92 is: 100,907.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,842.88 : 175,023.36 = 73,129.92 : x
  2. Step 2: Convert to fraction form
    126,842.88/175,023.36 = 73,129.92/x
  3. Step 3: Cross multiply
    126,842.88x = 175,023.36 × 73,129.92
  4. Step 4: Simplify right side
    126,842.88x = 12,799,444,314.93
  5. Step 5: Solve for x
    x = 12,799,444,314.93/126,842.88
  6. Step 6: Final answer
    x = 100,907.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.