Home / 102,245.90-153,292.30-68,872.28

Finding the Fourth Proportional to 102,245.90, 153,292.30 and 68,872.28

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Solution

The fourth proportional to 102,245.90, 153,292.30 and 68,872.28 is: 103,256.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,245.90 : 153,292.30 = 68,872.28 : x
  2. Step 2: Convert to fraction form
    102,245.90/153,292.30 = 68,872.28/x
  3. Step 3: Cross multiply
    102,245.90x = 153,292.30 × 68,872.28
  4. Step 4: Simplify right side
    102,245.90x = 10,557,589,268.80
  5. Step 5: Solve for x
    x = 10,557,589,268.80/102,245.90
  6. Step 6: Final answer
    x = 103,256.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.