Home / 187,029.30-280,236.15-108,005.70

Finding the Fourth Proportional to 187,029.30, 280,236.15 and 108,005.70

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Solution

The fourth proportional to 187,029.30, 280,236.15 and 108,005.70 is: 161,830.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,029.30 : 280,236.15 = 108,005.70 : x
  2. Step 2: Convert to fraction form
    187,029.30/280,236.15 = 108,005.70/x
  3. Step 3: Cross multiply
    187,029.30x = 280,236.15 × 108,005.70
  4. Step 4: Simplify right side
    187,029.30x = 30,267,101,546.06
  5. Step 5: Solve for x
    x = 30,267,101,546.06/187,029.30
  6. Step 6: Final answer
    x = 161,830.80

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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.