Home / 135,977.54-187,545.38-120,680.08

Finding the Fourth Proportional to 135,977.54, 187,545.38 and 120,680.08

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Solution

The fourth proportional to 135,977.54, 187,545.38 and 120,680.08 is: 166,446.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,977.54 : 187,545.38 = 120,680.08 : x
  2. Step 2: Convert to fraction form
    135,977.54/187,545.38 = 120,680.08/x
  3. Step 3: Cross multiply
    135,977.54x = 187,545.38 × 120,680.08
  4. Step 4: Simplify right side
    135,977.54x = 22,632,990,389.77
  5. Step 5: Solve for x
    x = 22,632,990,389.77/135,977.54
  6. Step 6: Final answer
    x = 166,446.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.