Home / 123,310.44-170,155.38-71,617.44

Finding the Fourth Proportional to 123,310.44, 170,155.38 and 71,617.44

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Solution

The fourth proportional to 123,310.44, 170,155.38 and 71,617.44 is: 98,824.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,310.44 : 170,155.38 = 71,617.44 : x
  2. Step 2: Convert to fraction form
    123,310.44/170,155.38 = 71,617.44/x
  3. Step 3: Cross multiply
    123,310.44x = 170,155.38 × 71,617.44
  4. Step 4: Simplify right side
    123,310.44x = 12,186,092,717.83
  5. Step 5: Solve for x
    x = 12,186,092,717.83/123,310.44
  6. Step 6: Final answer
    x = 98,824.50

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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.