Home / 140,842.18-194,366.92-77,179.42

Finding the Fourth Proportional to 140,842.18, 194,366.92 and 77,179.42

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Solution

The fourth proportional to 140,842.18, 194,366.92 and 77,179.42 is: 106,510.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,842.18 : 194,366.92 = 77,179.42 : x
  2. Step 2: Convert to fraction form
    140,842.18/194,366.92 = 77,179.42/x
  3. Step 3: Cross multiply
    140,842.18x = 194,366.92 × 77,179.42
  4. Step 4: Simplify right side
    140,842.18x = 15,001,126,152.79
  5. Step 5: Solve for x
    x = 15,001,126,152.79/140,842.18
  6. Step 6: Final answer
    x = 106,510.18

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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.