Home / 140,780.67-194,277.35-77,120.73

Finding the Fourth Proportional to 140,780.67, 194,277.35 and 77,120.73

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Solution

The fourth proportional to 140,780.67, 194,277.35 and 77,120.73 is: 106,426.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,780.67 : 194,277.35 = 77,120.73 : x
  2. Step 2: Convert to fraction form
    140,780.67/194,277.35 = 77,120.73/x
  3. Step 3: Cross multiply
    140,780.67x = 194,277.35 × 77,120.73
  4. Step 4: Simplify right side
    140,780.67x = 14,982,811,054.47
  5. Step 5: Solve for x
    x = 14,982,811,054.47/140,780.67
  6. Step 6: Final answer
    x = 106,426.62

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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.