Home / 187,321.60-280,982.40-54,206.20

Finding the Fourth Proportional to 187,321.60, 280,982.40 and 54,206.20

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Solution

The fourth proportional to 187,321.60, 280,982.40 and 54,206.20 is: 81,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,321.60 : 280,982.40 = 54,206.20 : x
  2. Step 2: Convert to fraction form
    187,321.60/280,982.40 = 54,206.20/x
  3. Step 3: Cross multiply
    187,321.60x = 280,982.40 × 54,206.20
  4. Step 4: Simplify right side
    187,321.60x = 15,230,988,170.88
  5. Step 5: Solve for x
    x = 15,230,988,170.88/187,321.60
  6. Step 6: Final answer
    x = 81,309.30

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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.