Home / 158,568.57-218,939.43-102,078.36

Finding the Fourth Proportional to 158,568.57, 218,939.43 and 102,078.36

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Solution

The fourth proportional to 158,568.57, 218,939.43 and 102,078.36 is: 140,942.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,568.57 : 218,939.43 = 102,078.36 : x
  2. Step 2: Convert to fraction form
    158,568.57/218,939.43 = 102,078.36/x
  3. Step 3: Cross multiply
    158,568.57x = 218,939.43 × 102,078.36
  4. Step 4: Simplify right side
    158,568.57x = 22,348,977,953.73
  5. Step 5: Solve for x
    x = 22,348,977,953.73/158,568.57
  6. Step 6: Final answer
    x = 140,942.04

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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.