Home / 140,515.14-193,906.76-76,851.56

Finding the Fourth Proportional to 140,515.14, 193,906.76 and 76,851.56

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Solution

The fourth proportional to 140,515.14, 193,906.76 and 76,851.56 is: 106,052.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,515.14 : 193,906.76 = 76,851.56 : x
  2. Step 2: Convert to fraction form
    140,515.14/193,906.76 = 76,851.56/x
  3. Step 3: Cross multiply
    140,515.14x = 193,906.76 × 76,851.56
  4. Step 4: Simplify right side
    140,515.14x = 14,902,037,000.55
  5. Step 5: Solve for x
    x = 14,902,037,000.55/140,515.14
  6. Step 6: Final answer
    x = 106,052.89

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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.