Home / 165,467.18-248,225.38-76,729.66

Finding the Fourth Proportional to 165,467.18, 248,225.38 and 76,729.66

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Solution

The fourth proportional to 165,467.18, 248,225.38 and 76,729.66 is: 115,105.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,467.18 : 248,225.38 = 76,729.66 : x
  2. Step 2: Convert to fraction form
    165,467.18/248,225.38 = 76,729.66/x
  3. Step 3: Cross multiply
    165,467.18x = 248,225.38 × 76,729.66
  4. Step 4: Simplify right side
    165,467.18x = 19,046,248,198.38
  5. Step 5: Solve for x
    x = 19,046,248,198.38/165,467.18
  6. Step 6: Final answer
    x = 115,105.90

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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.