Home / 199,420.40-275,200.98-108,778.30

Finding the Fourth Proportional to 199,420.40, 275,200.98 and 108,778.30

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Solution

The fourth proportional to 199,420.40, 275,200.98 and 108,778.30 is: 150,114.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,420.40 : 275,200.98 = 108,778.30 : x
  2. Step 2: Convert to fraction form
    199,420.40/275,200.98 = 108,778.30/x
  3. Step 3: Cross multiply
    199,420.40x = 275,200.98 × 108,778.30
  4. Step 4: Simplify right side
    199,420.40x = 29,935,894,762.73
  5. Step 5: Solve for x
    x = 29,935,894,762.73/199,420.40
  6. Step 6: Final answer
    x = 150,114.51

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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.