Home / 75,286.74-103,104.78-74,302.62

Finding the Fourth Proportional to 75,286.74, 103,104.78 and 74,302.62

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Solution

The fourth proportional to 75,286.74, 103,104.78 and 74,302.62 is: 101,757.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,286.74 : 103,104.78 = 74,302.62 : x
  2. Step 2: Convert to fraction form
    75,286.74/103,104.78 = 74,302.62/x
  3. Step 3: Cross multiply
    75,286.74x = 103,104.78 × 74,302.62
  4. Step 4: Simplify right side
    75,286.74x = 7,660,955,288.52
  5. Step 5: Solve for x
    x = 7,660,955,288.52/75,286.74
  6. Step 6: Final answer
    x = 101,757.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.