Home / 140,998.60-211,517.34-81,862.12

Finding the Fourth Proportional to 140,998.60, 211,517.34 and 81,862.12

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Solution

The fourth proportional to 140,998.60, 211,517.34 and 81,862.12 is: 122,804.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,998.60 : 211,517.34 = 81,862.12 : x
  2. Step 2: Convert to fraction form
    140,998.60/211,517.34 = 81,862.12/x
  3. Step 3: Cross multiply
    140,998.60x = 211,517.34 × 81,862.12
  4. Step 4: Simplify right side
    140,998.60x = 17,315,257,869.16
  5. Step 5: Solve for x
    x = 17,315,257,869.16/140,998.60
  6. Step 6: Final answer
    x = 122,804.47

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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.