Home / 192,882.11-289,241.82-72,918.81

Finding the Fourth Proportional to 192,882.11, 289,241.82 and 72,918.81

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Solution

The fourth proportional to 192,882.11, 289,241.82 and 72,918.81 is: 109,347.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,882.11 : 289,241.82 = 72,918.81 : x
  2. Step 2: Convert to fraction form
    192,882.11/289,241.82 = 72,918.81/x
  3. Step 3: Cross multiply
    192,882.11x = 289,241.82 × 72,918.81
  4. Step 4: Simplify right side
    192,882.11x = 21,091,169,316.63
  5. Step 5: Solve for x
    x = 21,091,169,316.63/192,882.11
  6. Step 6: Final answer
    x = 109,347.47

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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.