Home / 119,828.80-165,364.66-66,115.78

Finding the Fourth Proportional to 119,828.80, 165,364.66 and 66,115.78

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Solution

The fourth proportional to 119,828.80, 165,364.66 and 66,115.78 is: 91,240.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,828.80 : 165,364.66 = 66,115.78 : x
  2. Step 2: Convert to fraction form
    119,828.80/165,364.66 = 66,115.78/x
  3. Step 3: Cross multiply
    119,828.80x = 165,364.66 × 66,115.78
  4. Step 4: Simplify right side
    119,828.80x = 10,933,213,480.33
  5. Step 5: Solve for x
    x = 10,933,213,480.33/119,828.80
  6. Step 6: Final answer
    x = 91,240.28

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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.