Home / 199,432.35-275,218.40-108,788.72

Finding the Fourth Proportional to 199,432.35, 275,218.40 and 108,788.72

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Solution

The fourth proportional to 199,432.35, 275,218.40 and 108,788.72 is: 150,129.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,432.35 : 275,218.40 = 108,788.72 : x
  2. Step 2: Convert to fraction form
    199,432.35/275,218.40 = 108,788.72/x
  3. Step 3: Cross multiply
    199,432.35x = 275,218.40 × 108,788.72
  4. Step 4: Simplify right side
    199,432.35x = 29,940,657,456.45
  5. Step 5: Solve for x
    x = 29,940,657,456.45/199,432.35
  6. Step 6: Final answer
    x = 150,129.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.