Home / 236,778.98-355,324.16-87,020.55

Finding the Fourth Proportional to 236,778.98, 355,324.16 and 87,020.55

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Solution

The fourth proportional to 236,778.98, 355,324.16 and 87,020.55 is: 130,588.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,778.98 : 355,324.16 = 87,020.55 : x
  2. Step 2: Convert to fraction form
    236,778.98/355,324.16 = 87,020.55/x
  3. Step 3: Cross multiply
    236,778.98x = 355,324.16 × 87,020.55
  4. Step 4: Simplify right side
    236,778.98x = 30,920,503,396.39
  5. Step 5: Solve for x
    x = 30,920,503,396.39/236,778.98
  6. Step 6: Final answer
    x = 130,588.04

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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.