Home / 136,755.96-188,732.69-76,338.35

Finding the Fourth Proportional to 136,755.96, 188,732.69 and 76,338.35

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Solution

The fourth proportional to 136,755.96, 188,732.69 and 76,338.35 is: 105,352.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,755.96 : 188,732.69 = 76,338.35 : x
  2. Step 2: Convert to fraction form
    136,755.96/188,732.69 = 76,338.35/x
  3. Step 3: Cross multiply
    136,755.96x = 188,732.69 × 76,338.35
  4. Step 4: Simplify right side
    136,755.96x = 14,407,542,145.66
  5. Step 5: Solve for x
    x = 14,407,542,145.66/136,755.96
  6. Step 6: Final answer
    x = 105,352.21

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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.