Home / 187,331.42-280,923.17-74,990.70

Finding the Fourth Proportional to 187,331.42, 280,923.17 and 74,990.70

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Solution

The fourth proportional to 187,331.42, 280,923.17 and 74,990.70 is: 112,456.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,331.42 : 280,923.17 = 74,990.70 : x
  2. Step 2: Convert to fraction form
    187,331.42/280,923.17 = 74,990.70/x
  3. Step 3: Cross multiply
    187,331.42x = 280,923.17 × 74,990.70
  4. Step 4: Simplify right side
    187,331.42x = 21,066,625,164.52
  5. Step 5: Solve for x
    x = 21,066,625,164.52/187,331.42
  6. Step 6: Final answer
    x = 112,456.44

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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.