Home / 140,708.88-194,176.33-77,046.68

Finding the Fourth Proportional to 140,708.88, 194,176.33 and 77,046.68

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Solution

The fourth proportional to 140,708.88, 194,176.33 and 77,046.68 is: 106,323.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,708.88 : 194,176.33 = 77,046.68 : x
  2. Step 2: Convert to fraction form
    140,708.88/194,176.33 = 77,046.68/x
  3. Step 3: Cross multiply
    140,708.88x = 194,176.33 × 77,046.68
  4. Step 4: Simplify right side
    140,708.88x = 14,960,641,853.91
  5. Step 5: Solve for x
    x = 14,960,641,853.91/140,708.88
  6. Step 6: Final answer
    x = 106,323.37

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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.