Home / 187,091.60-280,637.40-108,165.20

Finding the Fourth Proportional to 187,091.60, 280,637.40 and 108,165.20

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Solution

The fourth proportional to 187,091.60, 280,637.40 and 108,165.20 is: 162,247.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,091.60 : 280,637.40 = 108,165.20 : x
  2. Step 2: Convert to fraction form
    187,091.60/280,637.40 = 108,165.20/x
  3. Step 3: Cross multiply
    187,091.60x = 280,637.40 × 108,165.20
  4. Step 4: Simplify right side
    187,091.60x = 30,355,200,498.48
  5. Step 5: Solve for x
    x = 30,355,200,498.48/187,091.60
  6. Step 6: Final answer
    x = 162,247.80

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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.