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Finding the Fourth Proportional to 104,838.40, 144,654.60 and 66,610

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Solution

The fourth proportional to 104,838.40, 144,654.60 and 66,610 is: 91,907.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,838.40 : 144,654.60 = 66,610 : x
  2. Step 2: Convert to fraction form
    104,838.40/144,654.60 = 66,610/x
  3. Step 3: Cross multiply
    104,838.40x = 144,654.60 × 66,610
  4. Step 4: Simplify right side
    104,838.40x = 9,635,442,906
  5. Step 5: Solve for x
    x = 9,635,442,906/104,838.40
  6. Step 6: Final answer
    x = 91,907.57

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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.