Home / 140,299.20-193,617.60-76,642.92

Finding the Fourth Proportional to 140,299.20, 193,617.60 and 76,642.92

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Solution

The fourth proportional to 140,299.20, 193,617.60 and 76,642.92 is: 105,769.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,299.20 : 193,617.60 = 76,642.92 : x
  2. Step 2: Convert to fraction form
    140,299.20/193,617.60 = 76,642.92/x
  3. Step 3: Cross multiply
    140,299.20x = 193,617.60 × 76,642.92
  4. Step 4: Simplify right side
    140,299.20x = 14,839,418,227.39
  5. Step 5: Solve for x
    x = 14,839,418,227.39/140,299.20
  6. Step 6: Final answer
    x = 105,769.80

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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.