Home / 108,640.40-162,766.20-88,811.60

Finding the Fourth Proportional to 108,640.40, 162,766.20 and 88,811.60

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Solution

The fourth proportional to 108,640.40, 162,766.20 and 88,811.60 is: 133,058.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,640.40 : 162,766.20 = 88,811.60 : x
  2. Step 2: Convert to fraction form
    108,640.40/162,766.20 = 88,811.60/x
  3. Step 3: Cross multiply
    108,640.40x = 162,766.20 × 88,811.60
  4. Step 4: Simplify right side
    108,640.40x = 14,455,526,647.92
  5. Step 5: Solve for x
    x = 14,455,526,647.92/108,640.40
  6. Step 6: Final answer
    x = 133,058.48

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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.