Home / 126,908.14-175,053.78-81,645.04

Finding the Fourth Proportional to 126,908.14, 175,053.78 and 81,645.04

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Solution

The fourth proportional to 126,908.14, 175,053.78 and 81,645.04 is: 112,619.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,908.14 : 175,053.78 = 81,645.04 : x
  2. Step 2: Convert to fraction form
    126,908.14/175,053.78 = 81,645.04/x
  3. Step 3: Cross multiply
    126,908.14x = 175,053.78 × 81,645.04
  4. Step 4: Simplify right side
    126,908.14x = 14,292,272,870.25
  5. Step 5: Solve for x
    x = 14,292,272,870.25/126,908.14
  6. Step 6: Final answer
    x = 112,619.04

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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.