Home / 193,288.24-289,862.89-66,894.20

Finding the Fourth Proportional to 193,288.24, 289,862.89 and 66,894.20

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Solution

The fourth proportional to 193,288.24, 289,862.89 and 66,894.20 is: 100,317.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,288.24 : 289,862.89 = 66,894.20 : x
  2. Step 2: Convert to fraction form
    193,288.24/289,862.89 = 66,894.20/x
  3. Step 3: Cross multiply
    193,288.24x = 289,862.89 × 66,894.20
  4. Step 4: Simplify right side
    193,288.24x = 19,390,144,519.69
  5. Step 5: Solve for x
    x = 19,390,144,519.69/193,288.24
  6. Step 6: Final answer
    x = 100,317.25

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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.