Home / 120,273.28-165,974.62-66,555.10

Finding the Fourth Proportional to 120,273.28, 165,974.62 and 66,555.10

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Solution

The fourth proportional to 120,273.28, 165,974.62 and 66,555.10 is: 91,844.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,273.28 : 165,974.62 = 66,555.10 : x
  2. Step 2: Convert to fraction form
    120,273.28/165,974.62 = 66,555.10/x
  3. Step 3: Cross multiply
    120,273.28x = 165,974.62 × 66,555.10
  4. Step 4: Simplify right side
    120,273.28x = 11,046,457,431.56
  5. Step 5: Solve for x
    x = 11,046,457,431.56/120,273.28
  6. Step 6: Final answer
    x = 91,844.65

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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.