Home / 100,568.13-138,823.62-60,274.18

Finding the Fourth Proportional to 100,568.13, 138,823.62 and 60,274.18

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Solution

The fourth proportional to 100,568.13, 138,823.62 and 60,274.18 is: 83,202.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,568.13 : 138,823.62 = 60,274.18 : x
  2. Step 2: Convert to fraction form
    100,568.13/138,823.62 = 60,274.18/x
  3. Step 3: Cross multiply
    100,568.13x = 138,823.62 × 60,274.18
  4. Step 4: Simplify right side
    100,568.13x = 8,367,479,365.79
  5. Step 5: Solve for x
    x = 8,367,479,365.79/100,568.13
  6. Step 6: Final answer
    x = 83,202.10

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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.