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Finding the Fourth Proportional to 149,662.26, 206,506.72 and 88,418.42

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Solution

The fourth proportional to 149,662.26, 206,506.72 and 88,418.42 is: 122,001.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,662.26 : 206,506.72 = 88,418.42 : x
  2. Step 2: Convert to fraction form
    149,662.26/206,506.72 = 88,418.42/x
  3. Step 3: Cross multiply
    149,662.26x = 206,506.72 × 88,418.42
  4. Step 4: Simplify right side
    149,662.26x = 18,258,996,427.16
  5. Step 5: Solve for x
    x = 18,258,996,427.16/149,662.26
  6. Step 6: Final answer
    x = 122,001.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.