Home / 187,391.25-281,116.35-80,805.51

Finding the Fourth Proportional to 187,391.25, 281,116.35 and 80,805.51

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Solution

The fourth proportional to 187,391.25, 281,116.35 and 80,805.51 is: 121,220.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,391.25 : 281,116.35 = 80,805.51 : x
  2. Step 2: Convert to fraction form
    187,391.25/281,116.35 = 80,805.51/x
  3. Step 3: Cross multiply
    187,391.25x = 281,116.35 × 80,805.51
  4. Step 4: Simplify right side
    187,391.25x = 22,715,750,031.09
  5. Step 5: Solve for x
    x = 22,715,750,031.09/187,391.25
  6. Step 6: Final answer
    x = 121,220.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.