Home / 126,892.06-175,031.78-81,629

Finding the Fourth Proportional to 126,892.06, 175,031.78 and 81,629

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Solution

The fourth proportional to 126,892.06, 175,031.78 and 81,629 is: 112,597.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,892.06 : 175,031.78 = 81,629 : x
  2. Step 2: Convert to fraction form
    126,892.06/175,031.78 = 81,629/x
  3. Step 3: Cross multiply
    126,892.06x = 175,031.78 × 81,629
  4. Step 4: Simplify right side
    126,892.06x = 14,287,669,169.62
  5. Step 5: Solve for x
    x = 14,287,669,169.62/126,892.06
  6. Step 6: Final answer
    x = 112,597.03

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1.5x scale

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.