Home / 192,799.51-289,143.73-66,434.65

Finding the Fourth Proportional to 192,799.51, 289,143.73 and 66,434.65

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Solution

The fourth proportional to 192,799.51, 289,143.73 and 66,434.65 is: 99,632.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,799.51 : 289,143.73 = 66,434.65 : x
  2. Step 2: Convert to fraction form
    192,799.51/289,143.73 = 66,434.65/x
  3. Step 3: Cross multiply
    192,799.51x = 289,143.73 × 66,434.65
  4. Step 4: Simplify right side
    192,799.51x = 19,209,162,502.24
  5. Step 5: Solve for x
    x = 19,209,162,502.24/192,799.51
  6. Step 6: Final answer
    x = 99,632.84

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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.