Home / 140,355.28-193,691.66-76,694.45

Finding the Fourth Proportional to 140,355.28, 193,691.66 and 76,694.45

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Solution

The fourth proportional to 140,355.28, 193,691.66 and 76,694.45 is: 105,839.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,355.28 : 193,691.66 = 76,694.45 : x
  2. Step 2: Convert to fraction form
    140,355.28/193,691.66 = 76,694.45/x
  3. Step 3: Cross multiply
    140,355.28x = 193,691.66 × 76,694.45
  4. Step 4: Simplify right side
    140,355.28x = 14,855,073,981.36
  5. Step 5: Solve for x
    x = 14,855,073,981.36/140,355.28
  6. Step 6: Final answer
    x = 105,839.08

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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.