Home / 192,707.20-289,067.12-66,346.11

Finding the Fourth Proportional to 192,707.20, 289,067.12 and 66,346.11

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Solution

The fourth proportional to 192,707.20, 289,067.12 and 66,346.11 is: 99,521.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,707.20 : 289,067.12 = 66,346.11 : x
  2. Step 2: Convert to fraction form
    192,707.20/289,067.12 = 66,346.11/x
  3. Step 3: Cross multiply
    192,707.20x = 289,067.12 × 66,346.11
  4. Step 4: Simplify right side
    192,707.20x = 19,178,478,857.97
  5. Step 5: Solve for x
    x = 19,178,478,857.97/192,707.20
  6. Step 6: Final answer
    x = 99,521.34

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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.