Home / 268,739.38-403,167.38-81,746.02

Finding the Fourth Proportional to 268,739.38, 403,167.38 and 81,746.02

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Solution

The fourth proportional to 268,739.38, 403,167.38 and 81,746.02 is: 122,636.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,739.38 : 403,167.38 = 81,746.02 : x
  2. Step 2: Convert to fraction form
    268,739.38/403,167.38 = 81,746.02/x
  3. Step 3: Cross multiply
    268,739.38x = 403,167.38 × 81,746.02
  4. Step 4: Simplify right side
    268,739.38x = 32,957,328,708.83
  5. Step 5: Solve for x
    x = 32,957,328,708.83/268,739.38
  6. Step 6: Final answer
    x = 122,636.77

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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.