Home / 136,310.88-204,565.68-69,806.64

Finding the Fourth Proportional to 136,310.88, 204,565.68 and 69,806.64

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Solution

The fourth proportional to 136,310.88, 204,565.68 and 69,806.64 is: 104,760.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,310.88 : 204,565.68 = 69,806.64 : x
  2. Step 2: Convert to fraction form
    136,310.88/204,565.68 = 69,806.64/x
  3. Step 3: Cross multiply
    136,310.88x = 204,565.68 × 69,806.64
  4. Step 4: Simplify right side
    136,310.88x = 14,280,042,780.12
  5. Step 5: Solve for x
    x = 14,280,042,780.12/136,310.88
  6. Step 6: Final answer
    x = 104,760.84

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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.