Home / 135,734.22-187,314.35-75,308.81

Finding the Fourth Proportional to 135,734.22, 187,314.35 and 75,308.81

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Solution

The fourth proportional to 135,734.22, 187,314.35 and 75,308.81 is: 103,926.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,734.22 : 187,314.35 = 75,308.81 : x
  2. Step 2: Convert to fraction form
    135,734.22/187,314.35 = 75,308.81/x
  3. Step 3: Cross multiply
    135,734.22x = 187,314.35 × 75,308.81
  4. Step 4: Simplify right side
    135,734.22x = 14,106,419,481.31
  5. Step 5: Solve for x
    x = 14,106,419,481.31/135,734.22
  6. Step 6: Final answer
    x = 103,926.77

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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.