Home / 187,220.60-280,832.10-74,910.20

Finding the Fourth Proportional to 187,220.60, 280,832.10 and 74,910.20

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Solution

The fourth proportional to 187,220.60, 280,832.10 and 74,910.20 is: 112,365.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,220.60 : 280,832.10 = 74,910.20 : x
  2. Step 2: Convert to fraction form
    187,220.60/280,832.10 = 74,910.20/x
  3. Step 3: Cross multiply
    187,220.60x = 280,832.10 × 74,910.20
  4. Step 4: Simplify right side
    187,220.60x = 21,037,188,777.42
  5. Step 5: Solve for x
    x = 21,037,188,777.42/187,220.60
  6. Step 6: Final answer
    x = 112,365.78

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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.