Home / 140,675.88-194,132.79-77,013.66

Finding the Fourth Proportional to 140,675.88, 194,132.79 and 77,013.66

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Solution

The fourth proportional to 140,675.88, 194,132.79 and 77,013.66 is: 106,278.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,675.88 : 194,132.79 = 77,013.66 : x
  2. Step 2: Convert to fraction form
    140,675.88/194,132.79 = 77,013.66/x
  3. Step 3: Cross multiply
    140,675.88x = 194,132.79 × 77,013.66
  4. Step 4: Simplify right side
    140,675.88x = 14,950,876,683.91
  5. Step 5: Solve for x
    x = 14,950,876,683.91/140,675.88
  6. Step 6: Final answer
    x = 106,278.89

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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.