Home / 126,909.14-175,055.16-81,646.04

Finding the Fourth Proportional to 126,909.14, 175,055.16 and 81,646.04

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Solution

The fourth proportional to 126,909.14, 175,055.16 and 81,646.04 is: 112,620.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,909.14 : 175,055.16 = 81,646.04 : x
  2. Step 2: Convert to fraction form
    126,909.14/175,055.16 = 81,646.04/x
  3. Step 3: Cross multiply
    126,909.14x = 175,055.16 × 81,646.04
  4. Step 4: Simplify right side
    126,909.14x = 14,292,560,595.57
  5. Step 5: Solve for x
    x = 14,292,560,595.57/126,909.14
  6. Step 6: Final answer
    x = 112,620.42

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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.