Home / 126,856.33-174,977.36-81,591.59

Finding the Fourth Proportional to 126,856.33, 174,977.36 and 81,591.59

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Solution

The fourth proportional to 126,856.33, 174,977.36 and 81,591.59 is: 112,542.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,856.33 : 174,977.36 = 81,591.59 : x
  2. Step 2: Convert to fraction form
    126,856.33/174,977.36 = 81,591.59/x
  3. Step 3: Cross multiply
    126,856.33x = 174,977.36 × 81,591.59
  4. Step 4: Simplify right side
    126,856.33x = 14,276,681,016.40
  5. Step 5: Solve for x
    x = 14,276,681,016.40/126,856.33
  6. Step 6: Final answer
    x = 112,542.13

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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.