Home / 193,359.40-289,969.75-66,965.70

Finding the Fourth Proportional to 193,359.40, 289,969.75 and 66,965.70

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Solution

The fourth proportional to 193,359.40, 289,969.75 and 66,965.70 is: 100,424.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,359.40 : 289,969.75 = 66,965.70 : x
  2. Step 2: Convert to fraction form
    193,359.40/289,969.75 = 66,965.70/x
  3. Step 3: Cross multiply
    193,359.40x = 289,969.75 × 66,965.70
  4. Step 4: Simplify right side
    193,359.40x = 19,418,027,287.58
  5. Step 5: Solve for x
    x = 19,418,027,287.58/193,359.40
  6. Step 6: Final answer
    x = 100,424.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.