Home / 268,749.46-403,184.13-81,775.54

Finding the Fourth Proportional to 268,749.46, 403,184.13 and 81,775.54

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Solution

The fourth proportional to 268,749.46, 403,184.13 and 81,775.54 is: 122,681.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,749.46 : 403,184.13 = 81,775.54 : x
  2. Step 2: Convert to fraction form
    268,749.46/403,184.13 = 81,775.54/x
  3. Step 3: Cross multiply
    268,749.46x = 403,184.13 × 81,775.54
  4. Step 4: Simplify right side
    268,749.46x = 32,970,597,525.38
  5. Step 5: Solve for x
    x = 32,970,597,525.38/268,749.46
  6. Step 6: Final answer
    x = 122,681.54

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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.