Home / 110,506.47-165,758.49-66,145.61

Finding the Fourth Proportional to 110,506.47, 165,758.49 and 66,145.61

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Solution

The fourth proportional to 110,506.47, 165,758.49 and 66,145.61 is: 99,217.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,506.47 : 165,758.49 = 66,145.61 : x
  2. Step 2: Convert to fraction form
    110,506.47/165,758.49 = 66,145.61/x
  3. Step 3: Cross multiply
    110,506.47x = 165,758.49 × 66,145.61
  4. Step 4: Simplify right side
    110,506.47x = 10,964,196,433.73
  5. Step 5: Solve for x
    x = 10,964,196,433.73/110,506.47
  6. Step 6: Final answer
    x = 99,217.69

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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.