Home / 135,082.89-202,751.37-68,570.69

Finding the Fourth Proportional to 135,082.89, 202,751.37 and 68,570.69

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Solution

The fourth proportional to 135,082.89, 202,751.37 and 68,570.69 is: 102,920.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,082.89 : 202,751.37 = 68,570.69 : x
  2. Step 2: Convert to fraction form
    135,082.89/202,751.37 = 68,570.69/x
  3. Step 3: Cross multiply
    135,082.89x = 202,751.37 × 68,570.69
  4. Step 4: Simplify right side
    135,082.89x = 13,902,800,325.59
  5. Step 5: Solve for x
    x = 13,902,800,325.59/135,082.89
  6. Step 6: Final answer
    x = 102,920.51

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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.