Home / 165,207.42-247,890.48-90,324.54

Finding the Fourth Proportional to 165,207.42, 247,890.48 and 90,324.54

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Solution

The fourth proportional to 165,207.42, 247,890.48 and 90,324.54 is: 135,530.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,207.42 : 247,890.48 = 90,324.54 : x
  2. Step 2: Convert to fraction form
    165,207.42/247,890.48 = 90,324.54/x
  3. Step 3: Cross multiply
    165,207.42x = 247,890.48 × 90,324.54
  4. Step 4: Simplify right side
    165,207.42x = 22,390,593,576.38
  5. Step 5: Solve for x
    x = 22,390,593,576.38/165,207.42
  6. Step 6: Final answer
    x = 135,530.19

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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.