Home / 136,218.78-204,451.77-69,704.86

Finding the Fourth Proportional to 136,218.78, 204,451.77 and 69,704.86

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Solution

The fourth proportional to 136,218.78, 204,451.77 and 69,704.86 is: 104,620.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,218.78 : 204,451.77 = 69,704.86 : x
  2. Step 2: Convert to fraction form
    136,218.78/204,451.77 = 69,704.86/x
  3. Step 3: Cross multiply
    136,218.78x = 204,451.77 × 69,704.86
  4. Step 4: Simplify right side
    136,218.78x = 14,251,282,004.60
  5. Step 5: Solve for x
    x = 14,251,282,004.60/136,218.78
  6. Step 6: Final answer
    x = 104,620.54

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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.