Home / 76,998.13-106,307.42-68,917.77

Finding the Fourth Proportional to 76,998.13, 106,307.42 and 68,917.77

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Solution

The fourth proportional to 76,998.13, 106,307.42 and 68,917.77 is: 95,151.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,998.13 : 106,307.42 = 68,917.77 : x
  2. Step 2: Convert to fraction form
    76,998.13/106,307.42 = 68,917.77/x
  3. Step 3: Cross multiply
    76,998.13x = 106,307.42 × 68,917.77
  4. Step 4: Simplify right side
    76,998.13x = 7,326,469,976.26
  5. Step 5: Solve for x
    x = 7,326,469,976.26/76,998.13
  6. Step 6: Final answer
    x = 95,151.27

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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.