Home / 187,326.20-280,406.10-108,205.40

Finding the Fourth Proportional to 187,326.20, 280,406.10 and 108,205.40

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Solution

The fourth proportional to 187,326.20, 280,406.10 and 108,205.40 is: 161,971.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,326.20 : 280,406.10 = 108,205.40 : x
  2. Step 2: Convert to fraction form
    187,326.20/280,406.10 = 108,205.40/x
  3. Step 3: Cross multiply
    187,326.20x = 280,406.10 × 108,205.40
  4. Step 4: Simplify right side
    187,326.20x = 30,341,454,212.94
  5. Step 5: Solve for x
    x = 30,341,454,212.94/187,326.20
  6. Step 6: Final answer
    x = 161,971.23

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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.