Home / 115,481.90-173,222.85-103,672.10

Finding the Fourth Proportional to 115,481.90, 173,222.85 and 103,672.10

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Solution

The fourth proportional to 115,481.90, 173,222.85 and 103,672.10 is: 155,508.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,481.90 : 173,222.85 = 103,672.10 : x
  2. Step 2: Convert to fraction form
    115,481.90/173,222.85 = 103,672.10/x
  3. Step 3: Cross multiply
    115,481.90x = 173,222.85 × 103,672.10
  4. Step 4: Simplify right side
    115,481.90x = 17,958,376,627.49
  5. Step 5: Solve for x
    x = 17,958,376,627.49/115,481.90
  6. Step 6: Final answer
    x = 155,508.15

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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.