Home / 126,991.23-175,366.47-81,747.73

Finding the Fourth Proportional to 126,991.23, 175,366.47 and 81,747.73

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Solution

The fourth proportional to 126,991.23, 175,366.47 and 81,747.73 is: 112,888.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,991.23 : 175,366.47 = 81,747.73 : x
  2. Step 2: Convert to fraction form
    126,991.23/175,366.47 = 81,747.73/x
  3. Step 3: Cross multiply
    126,991.23x = 175,366.47 × 81,747.73
  4. Step 4: Simplify right side
    126,991.23x = 14,335,810,840.61
  5. Step 5: Solve for x
    x = 14,335,810,840.61/126,991.23
  6. Step 6: Final answer
    x = 112,888.20

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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.