Home / 126,764.52-175,053.59-81,521.08

Finding the Fourth Proportional to 126,764.52, 175,053.59 and 81,521.08

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Solution

The fourth proportional to 126,764.52, 175,053.59 and 81,521.08 is: 112,575.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,764.52 : 175,053.59 = 81,521.08 : x
  2. Step 2: Convert to fraction form
    126,764.52/175,053.59 = 81,521.08/x
  3. Step 3: Cross multiply
    126,764.52x = 175,053.59 × 81,521.08
  4. Step 4: Simplify right side
    126,764.52x = 14,270,557,714.68
  5. Step 5: Solve for x
    x = 14,270,557,714.68/126,764.52
  6. Step 6: Final answer
    x = 112,575.33

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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.