Home / 135,379.11-203,255.01-68,864.25

Finding the Fourth Proportional to 135,379.11, 203,255.01 and 68,864.25

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Solution

The fourth proportional to 135,379.11, 203,255.01 and 68,864.25 is: 103,391.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,379.11 : 203,255.01 = 68,864.25 : x
  2. Step 2: Convert to fraction form
    135,379.11/203,255.01 = 68,864.25/x
  3. Step 3: Cross multiply
    135,379.11x = 203,255.01 × 68,864.25
  4. Step 4: Simplify right side
    135,379.11x = 13,997,003,822.39
  5. Step 5: Solve for x
    x = 13,997,003,822.39/135,379.11
  6. Step 6: Final answer
    x = 103,391.16

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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.