Home / 135,580.91-187,104.96-74,330.60

Finding the Fourth Proportional to 135,580.91, 187,104.96 and 74,330.60

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Solution

The fourth proportional to 135,580.91, 187,104.96 and 74,330.60 is: 102,578.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,580.91 : 187,104.96 = 74,330.60 : x
  2. Step 2: Convert to fraction form
    135,580.91/187,104.96 = 74,330.60/x
  3. Step 3: Cross multiply
    135,580.91x = 187,104.96 × 74,330.60
  4. Step 4: Simplify right side
    135,580.91x = 13,907,623,004.25
  5. Step 5: Solve for x
    x = 13,907,623,004.25/135,580.91
  6. Step 6: Final answer
    x = 102,578.04

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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.