Home / 187,274.91-281,112.27-80,711.45

Finding the Fourth Proportional to 187,274.91, 281,112.27 and 80,711.45

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Solution

The fourth proportional to 187,274.91, 281,112.27 and 80,711.45 is: 121,153.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,274.91 : 281,112.27 = 80,711.45 : x
  2. Step 2: Convert to fraction form
    187,274.91/281,112.27 = 80,711.45/x
  3. Step 3: Cross multiply
    187,274.91x = 281,112.27 × 80,711.45
  4. Step 4: Simplify right side
    187,274.91x = 22,688,979,387.23
  5. Step 5: Solve for x
    x = 22,688,979,387.23/187,274.91
  6. Step 6: Final answer
    x = 121,153.33

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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.