Home / 192,942.90-289,513.13-91,855.31

Finding the Fourth Proportional to 192,942.90, 289,513.13 and 91,855.31

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Solution

The fourth proportional to 192,942.90, 289,513.13 and 91,855.31 is: 137,829.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,942.90 : 289,513.13 = 91,855.31 : x
  2. Step 2: Convert to fraction form
    192,942.90/289,513.13 = 91,855.31/x
  3. Step 3: Cross multiply
    192,942.90x = 289,513.13 × 91,855.31
  4. Step 4: Simplify right side
    192,942.90x = 26,593,316,398.38
  5. Step 5: Solve for x
    x = 26,593,316,398.38/192,942.90
  6. Step 6: Final answer
    x = 137,829.98

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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.