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Finding the Fourth Proportional to 125,450.69, 188,180.28 and 45,448.40

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Solution

The fourth proportional to 125,450.69, 188,180.28 and 45,448.40 is: 68,174.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,450.69 : 188,180.28 = 45,448.40 : x
  2. Step 2: Convert to fraction form
    125,450.69/188,180.28 = 45,448.40/x
  3. Step 3: Cross multiply
    125,450.69x = 188,180.28 × 45,448.40
  4. Step 4: Simplify right side
    125,450.69x = 8,552,491,696.65
  5. Step 5: Solve for x
    x = 8,552,491,696.65/125,450.69
  6. Step 6: Final answer
    x = 68,174.13

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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.