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Finding the Fourth Proportional to 187,090.60, 280,635.90 and 108,164.20

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Solution

The fourth proportional to 187,090.60, 280,635.90 and 108,164.20 is: 162,246.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,090.60 : 280,635.90 = 108,164.20 : x
  2. Step 2: Convert to fraction form
    187,090.60/280,635.90 = 108,164.20/x
  3. Step 3: Cross multiply
    187,090.60x = 280,635.90 × 108,164.20
  4. Step 4: Simplify right side
    187,090.60x = 30,354,757,614.78
  5. Step 5: Solve for x
    x = 30,354,757,614.78/187,090.60
  6. Step 6: Final answer
    x = 162,246.30

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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.