Home / 193,084.29-289,665.45-66,729.15

Finding the Fourth Proportional to 193,084.29, 289,665.45 and 66,729.15

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Solution

The fourth proportional to 193,084.29, 289,665.45 and 66,729.15 is: 100,107.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,084.29 : 289,665.45 = 66,729.15 : x
  2. Step 2: Convert to fraction form
    193,084.29/289,665.45 = 66,729.15/x
  3. Step 3: Cross multiply
    193,084.29x = 289,665.45 × 66,729.15
  4. Step 4: Simplify right side
    193,084.29x = 19,329,129,262.87
  5. Step 5: Solve for x
    x = 19,329,129,262.87/193,084.29
  6. Step 6: Final answer
    x = 100,107.21

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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.