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Finding the Fourth Proportional to 169,452.36, 254,135.79 and 69,640.11

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Solution

The fourth proportional to 169,452.36, 254,135.79 and 69,640.11 is: 104,442.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,452.36 : 254,135.79 = 69,640.11 : x
  2. Step 2: Convert to fraction form
    169,452.36/254,135.79 = 69,640.11/x
  3. Step 3: Cross multiply
    169,452.36x = 254,135.79 × 69,640.11
  4. Step 4: Simplify right side
    169,452.36x = 17,698,044,370.54
  5. Step 5: Solve for x
    x = 17,698,044,370.54/169,452.36
  6. Step 6: Final answer
    x = 104,442.60

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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.