Home / 123,155.55-169,954.38-69,440.25

Finding the Fourth Proportional to 123,155.55, 169,954.38 and 69,440.25

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Solution

The fourth proportional to 123,155.55, 169,954.38 and 69,440.25 is: 95,827.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,155.55 : 169,954.38 = 69,440.25 : x
  2. Step 2: Convert to fraction form
    123,155.55/169,954.38 = 69,440.25/x
  3. Step 3: Cross multiply
    123,155.55x = 169,954.38 × 69,440.25
  4. Step 4: Simplify right side
    123,155.55x = 11,801,675,273.12
  5. Step 5: Solve for x
    x = 11,801,675,273.12/123,155.55
  6. Step 6: Final answer
    x = 95,827.39

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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.