Home / 187,331.40-280,997.10-112,681.80

Finding the Fourth Proportional to 187,331.40, 280,997.10 and 112,681.80

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Solution

The fourth proportional to 187,331.40, 280,997.10 and 112,681.80 is: 169,022.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,331.40 : 280,997.10 = 112,681.80 : x
  2. Step 2: Convert to fraction form
    187,331.40/280,997.10 = 112,681.80/x
  3. Step 3: Cross multiply
    187,331.40x = 280,997.10 × 112,681.80
  4. Step 4: Simplify right side
    187,331.40x = 31,663,259,022.78
  5. Step 5: Solve for x
    x = 31,663,259,022.78/187,331.40
  6. Step 6: Final answer
    x = 169,022.70

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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.