Home / 268,749.12-403,372.89-135,723.03

Finding the Fourth Proportional to 268,749.12, 403,372.89 and 135,723.03

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Solution

The fourth proportional to 268,749.12, 403,372.89 and 135,723.03 is: 203,710.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,749.12 : 403,372.89 = 135,723.03 : x
  2. Step 2: Convert to fraction form
    268,749.12/403,372.89 = 135,723.03/x
  3. Step 3: Cross multiply
    268,749.12x = 403,372.89 × 135,723.03
  4. Step 4: Simplify right side
    268,749.12x = 54,746,990,850.66
  5. Step 5: Solve for x
    x = 54,746,990,850.66/268,749.12
  6. Step 6: Final answer
    x = 203,710.40

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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.