Home / 119,821.88-165,357.36-66,107.60

Finding the Fourth Proportional to 119,821.88, 165,357.36 and 66,107.60

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Solution

The fourth proportional to 119,821.88, 165,357.36 and 66,107.60 is: 91,230.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,821.88 : 165,357.36 = 66,107.60 : x
  2. Step 2: Convert to fraction form
    119,821.88/165,357.36 = 66,107.60/x
  3. Step 3: Cross multiply
    119,821.88x = 165,357.36 × 66,107.60
  4. Step 4: Simplify right side
    119,821.88x = 10,931,378,211.94
  5. Step 5: Solve for x
    x = 10,931,378,211.94/119,821.88
  6. Step 6: Final answer
    x = 91,230.23

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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.