Home / 140,200.62-193,479.48-76,540.83

Finding the Fourth Proportional to 140,200.62, 193,479.48 and 76,540.83

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Solution

The fourth proportional to 140,200.62, 193,479.48 and 76,540.83 is: 105,627.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,200.62 : 193,479.48 = 76,540.83 : x
  2. Step 2: Convert to fraction form
    140,200.62/193,479.48 = 76,540.83/x
  3. Step 3: Cross multiply
    140,200.62x = 193,479.48 × 76,540.83
  4. Step 4: Simplify right side
    140,200.62x = 14,809,079,987.17
  5. Step 5: Solve for x
    x = 14,809,079,987.17/140,200.62
  6. Step 6: Final answer
    x = 105,627.78

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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.