Home / 170,404.96-255,517.68-90,487.72

Finding the Fourth Proportional to 170,404.96, 255,517.68 and 90,487.72

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Solution

The fourth proportional to 170,404.96, 255,517.68 and 90,487.72 is: 135,683.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,404.96 : 255,517.68 = 90,487.72 : x
  2. Step 2: Convert to fraction form
    170,404.96/255,517.68 = 90,487.72/x
  3. Step 3: Cross multiply
    170,404.96x = 255,517.68 × 90,487.72
  4. Step 4: Simplify right side
    170,404.96x = 23,121,212,282.89
  5. Step 5: Solve for x
    x = 23,121,212,282.89/170,404.96
  6. Step 6: Final answer
    x = 135,683.92

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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.