Home / 187,132.60-280,698.90-108,206.20

Finding the Fourth Proportional to 187,132.60, 280,698.90 and 108,206.20

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Solution

The fourth proportional to 187,132.60, 280,698.90 and 108,206.20 is: 162,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,132.60 : 280,698.90 = 108,206.20 : x
  2. Step 2: Convert to fraction form
    187,132.60/280,698.90 = 108,206.20/x
  3. Step 3: Cross multiply
    187,132.60x = 280,698.90 × 108,206.20
  4. Step 4: Simplify right side
    187,132.60x = 30,373,361,313.18
  5. Step 5: Solve for x
    x = 30,373,361,313.18/187,132.60
  6. Step 6: Final answer
    x = 162,309.30

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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.