Home / 187,386.28-281,108.82-80,800.54

Finding the Fourth Proportional to 187,386.28, 281,108.82 and 80,800.54

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Solution

The fourth proportional to 187,386.28, 281,108.82 and 80,800.54 is: 121,213.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,386.28 : 281,108.82 = 80,800.54 : x
  2. Step 2: Convert to fraction form
    187,386.28/281,108.82 = 80,800.54/x
  3. Step 3: Cross multiply
    187,386.28x = 281,108.82 × 80,800.54
  4. Step 4: Simplify right side
    187,386.28x = 22,713,744,454.76
  5. Step 5: Solve for x
    x = 22,713,744,454.76/187,386.28
  6. Step 6: Final answer
    x = 121,213.49

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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.