Home / 154,568.42-213,306.63-90,036

Finding the Fourth Proportional to 154,568.42, 213,306.63 and 90,036

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Solution

The fourth proportional to 154,568.42, 213,306.63 and 90,036 is: 124,250.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,568.42 : 213,306.63 = 90,036 : x
  2. Step 2: Convert to fraction form
    154,568.42/213,306.63 = 90,036/x
  3. Step 3: Cross multiply
    154,568.42x = 213,306.63 × 90,036
  4. Step 4: Simplify right side
    154,568.42x = 19,205,275,738.68
  5. Step 5: Solve for x
    x = 19,205,275,738.68/154,568.42
  6. Step 6: Final answer
    x = 124,250.97

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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.