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Finding the Fourth Proportional to 88,131.10, 132,391.05 and 84,826.30

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Solution

The fourth proportional to 88,131.10, 132,391.05 and 84,826.30 is: 127,426.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,131.10 : 132,391.05 = 84,826.30 : x
  2. Step 2: Convert to fraction form
    88,131.10/132,391.05 = 84,826.30/x
  3. Step 3: Cross multiply
    88,131.10x = 132,391.05 × 84,826.30
  4. Step 4: Simplify right side
    88,131.10x = 11,230,242,924.62
  5. Step 5: Solve for x
    x = 11,230,242,924.62/88,131.10
  6. Step 6: Final answer
    x = 127,426.56

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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.