Home / 140,639.01-194,086.49-76,976.79

Finding the Fourth Proportional to 140,639.01, 194,086.49 and 76,976.79

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Solution

The fourth proportional to 140,639.01, 194,086.49 and 76,976.79 is: 106,230.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,639.01 : 194,086.49 = 76,976.79 : x
  2. Step 2: Convert to fraction form
    140,639.01/194,086.49 = 76,976.79/x
  3. Step 3: Cross multiply
    140,639.01x = 194,086.49 × 76,976.79
  4. Step 4: Simplify right side
    140,639.01x = 14,940,154,597.68
  5. Step 5: Solve for x
    x = 14,940,154,597.68/140,639.01
  6. Step 6: Final answer
    x = 106,230.52

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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.