Home / 123,450.30-185,175.45-122,138.10

Finding the Fourth Proportional to 123,450.30, 185,175.45 and 122,138.10

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Solution

The fourth proportional to 123,450.30, 185,175.45 and 122,138.10 is: 183,207.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,450.30 : 185,175.45 = 122,138.10 : x
  2. Step 2: Convert to fraction form
    123,450.30/185,175.45 = 122,138.10/x
  3. Step 3: Cross multiply
    123,450.30x = 185,175.45 × 122,138.10
  4. Step 4: Simplify right side
    123,450.30x = 22,616,977,629.65
  5. Step 5: Solve for x
    x = 22,616,977,629.65/123,450.30
  6. Step 6: Final answer
    x = 183,207.15

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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.