Home / 187,043.60-280,565.40-108,117.20

Finding the Fourth Proportional to 187,043.60, 280,565.40 and 108,117.20

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Solution

The fourth proportional to 187,043.60, 280,565.40 and 108,117.20 is: 162,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,043.60 : 280,565.40 = 108,117.20 : x
  2. Step 2: Convert to fraction form
    187,043.60/280,565.40 = 108,117.20/x
  3. Step 3: Cross multiply
    187,043.60x = 280,565.40 × 108,117.20
  4. Step 4: Simplify right side
    187,043.60x = 30,333,945,464.88
  5. Step 5: Solve for x
    x = 30,333,945,464.88/187,043.60
  6. Step 6: Final answer
    x = 162,175.80

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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.