Home / 140,869.93-194,400.12-76,340.97

Finding the Fourth Proportional to 140,869.93, 194,400.12 and 76,340.97

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Solution

The fourth proportional to 140,869.93, 194,400.12 and 76,340.97 is: 105,350.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,869.93 : 194,400.12 = 76,340.97 : x
  2. Step 2: Convert to fraction form
    140,869.93/194,400.12 = 76,340.97/x
  3. Step 3: Cross multiply
    140,869.93x = 194,400.12 × 76,340.97
  4. Step 4: Simplify right side
    140,869.93x = 14,840,693,728.92
  5. Step 5: Solve for x
    x = 14,840,693,728.92/140,869.93
  6. Step 6: Final answer
    x = 105,350.33

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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.