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Finding the Fourth Proportional to 88,354.26, 122,002.46 and 81,943.51

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Solution

The fourth proportional to 88,354.26, 122,002.46 and 81,943.51 is: 113,150.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,354.26 : 122,002.46 = 81,943.51 : x
  2. Step 2: Convert to fraction form
    88,354.26/122,002.46 = 81,943.51/x
  3. Step 3: Cross multiply
    88,354.26x = 122,002.46 × 81,943.51
  4. Step 4: Simplify right side
    88,354.26x = 9,997,309,801.03
  5. Step 5: Solve for x
    x = 9,997,309,801.03/88,354.26
  6. Step 6: Final answer
    x = 113,150.29

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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.