Home / 107,974.80-149,074.60-67,743.76

Finding the Fourth Proportional to 107,974.80, 149,074.60 and 67,743.76

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Solution

The fourth proportional to 107,974.80, 149,074.60 and 67,743.76 is: 93,529.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,974.80 : 149,074.60 = 67,743.76 : x
  2. Step 2: Convert to fraction form
    107,974.80/149,074.60 = 67,743.76/x
  3. Step 3: Cross multiply
    107,974.80x = 149,074.60 × 67,743.76
  4. Step 4: Simplify right side
    107,974.80x = 10,098,873,924.50
  5. Step 5: Solve for x
    x = 10,098,873,924.50/107,974.80
  6. Step 6: Final answer
    x = 93,529.92

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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.