Home / 119,907.20-165,481.92-66,197.12

Finding the Fourth Proportional to 119,907.20, 165,481.92 and 66,197.12

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Solution

The fourth proportional to 119,907.20, 165,481.92 and 66,197.12 is: 91,357.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,907.20 : 165,481.92 = 66,197.12 : x
  2. Step 2: Convert to fraction form
    119,907.20/165,481.92 = 66,197.12/x
  3. Step 3: Cross multiply
    119,907.20x = 165,481.92 × 66,197.12
  4. Step 4: Simplify right side
    119,907.20x = 10,954,426,516.07
  5. Step 5: Solve for x
    x = 10,954,426,516.07/119,907.20
  6. Step 6: Final answer
    x = 91,357.54

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1.5x scale

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.