Home / 102,251.88-153,301.32-68,878.26

Finding the Fourth Proportional to 102,251.88, 153,301.32 and 68,878.26

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Solution

The fourth proportional to 102,251.88, 153,301.32 and 68,878.26 is: 103,265.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,251.88 : 153,301.32 = 68,878.26 : x
  2. Step 2: Convert to fraction form
    102,251.88/153,301.32 = 68,878.26/x
  3. Step 3: Cross multiply
    102,251.88x = 153,301.32 × 68,878.26
  4. Step 4: Simplify right side
    102,251.88x = 10,559,128,177.30
  5. Step 5: Solve for x
    x = 10,559,128,177.30/102,251.88
  6. Step 6: Final answer
    x = 103,265.86

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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.