Home / 135,098.27-186,445.26-74,667.61

Finding the Fourth Proportional to 135,098.27, 186,445.26 and 74,667.61

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Solution

The fourth proportional to 135,098.27, 186,445.26 and 74,667.61 is: 103,046.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,098.27 : 186,445.26 = 74,667.61 : x
  2. Step 2: Convert to fraction form
    135,098.27/186,445.26 = 74,667.61/x
  3. Step 3: Cross multiply
    135,098.27x = 186,445.26 × 74,667.61
  4. Step 4: Simplify right side
    135,098.27x = 13,921,422,473.09
  5. Step 5: Solve for x
    x = 13,921,422,473.09/135,098.27
  6. Step 6: Final answer
    x = 103,046.64

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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.