Home / 135,580.20-187,098.40-74,325.96

Finding the Fourth Proportional to 135,580.20, 187,098.40 and 74,325.96

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Solution

The fourth proportional to 135,580.20, 187,098.40 and 74,325.96 is: 102,568.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,580.20 : 187,098.40 = 74,325.96 : x
  2. Step 2: Convert to fraction form
    135,580.20/187,098.40 = 74,325.96/x
  3. Step 3: Cross multiply
    135,580.20x = 187,098.40 × 74,325.96
  4. Step 4: Simplify right side
    135,580.20x = 13,906,268,194.46
  5. Step 5: Solve for x
    x = 13,906,268,194.46/135,580.20
  6. Step 6: Final answer
    x = 102,568.58

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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.