Home / 129,240.06-193,860.15-40,500.51

Finding the Fourth Proportional to 129,240.06, 193,860.15 and 40,500.51

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Solution

The fourth proportional to 129,240.06, 193,860.15 and 40,500.51 is: 60,750.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,240.06 : 193,860.15 = 40,500.51 : x
  2. Step 2: Convert to fraction form
    129,240.06/193,860.15 = 40,500.51/x
  3. Step 3: Cross multiply
    129,240.06x = 193,860.15 × 40,500.51
  4. Step 4: Simplify right side
    129,240.06x = 7,851,433,974.38
  5. Step 5: Solve for x
    x = 7,851,433,974.38/129,240.06
  6. Step 6: Final answer
    x = 60,750.78

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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.