Home / 136,847.26-188,847.43-76,418.97

Finding the Fourth Proportional to 136,847.26, 188,847.43 and 76,418.97

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Solution

The fourth proportional to 136,847.26, 188,847.43 and 76,418.97 is: 105,457.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,847.26 : 188,847.43 = 76,418.97 : x
  2. Step 2: Convert to fraction form
    136,847.26/188,847.43 = 76,418.97/x
  3. Step 3: Cross multiply
    136,847.26x = 188,847.43 × 76,418.97
  4. Step 4: Simplify right side
    136,847.26x = 14,431,526,087.75
  5. Step 5: Solve for x
    x = 14,431,526,087.75/136,847.26
  6. Step 6: Final answer
    x = 105,457.18

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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.