Home / 187,033.40-280,450.38-81,729.08

Finding the Fourth Proportional to 187,033.40, 280,450.38 and 81,729.08

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Solution

The fourth proportional to 187,033.40, 280,450.38 and 81,729.08 is: 122,550.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,033.40 : 280,450.38 = 81,729.08 : x
  2. Step 2: Convert to fraction form
    187,033.40/280,450.38 = 81,729.08/x
  3. Step 3: Cross multiply
    187,033.40x = 280,450.38 × 81,729.08
  4. Step 4: Simplify right side
    187,033.40x = 22,920,951,543.05
  5. Step 5: Solve for x
    x = 22,920,951,543.05/187,033.40
  6. Step 6: Final answer
    x = 122,550.04

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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.