Home / 140,571.03-193,987.27-76,908.68

Finding the Fourth Proportional to 140,571.03, 193,987.27 and 76,908.68

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Solution

The fourth proportional to 140,571.03, 193,987.27 and 76,908.68 is: 106,133.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,571.03 : 193,987.27 = 76,908.68 : x
  2. Step 2: Convert to fraction form
    140,571.03/193,987.27 = 76,908.68/x
  3. Step 3: Cross multiply
    140,571.03x = 193,987.27 × 76,908.68
  4. Step 4: Simplify right side
    140,571.03x = 14,919,304,872.50
  5. Step 5: Solve for x
    x = 14,919,304,872.50/140,571.03
  6. Step 6: Final answer
    x = 106,133.57

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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.