Home / 268,738.38-403,165.89-81,745.02

Finding the Fourth Proportional to 268,738.38, 403,165.89 and 81,745.02

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Solution

The fourth proportional to 268,738.38, 403,165.89 and 81,745.02 is: 122,635.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,738.38 : 403,165.89 = 81,745.02 : x
  2. Step 2: Convert to fraction form
    268,738.38/403,165.89 = 81,745.02/x
  3. Step 3: Cross multiply
    268,738.38x = 403,165.89 × 81,745.02
  4. Step 4: Simplify right side
    268,738.38x = 32,956,803,332.64
  5. Step 5: Solve for x
    x = 32,956,803,332.64/268,738.38
  6. Step 6: Final answer
    x = 122,635.27

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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.