Home / 115,380.20-173,147.70-40,500.20

Finding the Fourth Proportional to 115,380.20, 173,147.70 and 40,500.20

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Solution

The fourth proportional to 115,380.20, 173,147.70 and 40,500.20 is: 60,777.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,380.20 : 173,147.70 = 40,500.20 : x
  2. Step 2: Convert to fraction form
    115,380.20/173,147.70 = 40,500.20/x
  3. Step 3: Cross multiply
    115,380.20x = 173,147.70 × 40,500.20
  4. Step 4: Simplify right side
    115,380.20x = 7,012,516,479.54
  5. Step 5: Solve for x
    x = 7,012,516,479.54/115,380.20
  6. Step 6: Final answer
    x = 60,777.47

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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.