Home / 135,231.39-202,667.90-71,915.18

Finding the Fourth Proportional to 135,231.39, 202,667.90 and 71,915.18

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Solution

The fourth proportional to 135,231.39, 202,667.90 and 71,915.18 is: 107,777.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,231.39 : 202,667.90 = 71,915.18 : x
  2. Step 2: Convert to fraction form
    135,231.39/202,667.90 = 71,915.18/x
  3. Step 3: Cross multiply
    135,231.39x = 202,667.90 × 71,915.18
  4. Step 4: Simplify right side
    135,231.39x = 14,574,897,135.81
  5. Step 5: Solve for x
    x = 14,574,897,135.81/135,231.39
  6. Step 6: Final answer
    x = 107,777.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.