Home / 140,708.76-194,176.15-77,046.56

Finding the Fourth Proportional to 140,708.76, 194,176.15 and 77,046.56

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Solution

The fourth proportional to 140,708.76, 194,176.15 and 77,046.56 is: 106,323.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,708.76 : 194,176.15 = 77,046.56 : x
  2. Step 2: Convert to fraction form
    140,708.76/194,176.15 = 77,046.56/x
  3. Step 3: Cross multiply
    140,708.76x = 194,176.15 × 77,046.56
  4. Step 4: Simplify right side
    140,708.76x = 14,960,604,391.54
  5. Step 5: Solve for x
    x = 14,960,604,391.54/140,708.76
  6. Step 6: Final answer
    x = 106,323.19

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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.