Home / 107,981.40-161,966.97-37,855.38

Finding the Fourth Proportional to 107,981.40, 161,966.97 and 37,855.38

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Solution

The fourth proportional to 107,981.40, 161,966.97 and 37,855.38 is: 56,781.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,981.40 : 161,966.97 = 37,855.38 : x
  2. Step 2: Convert to fraction form
    107,981.40/161,966.97 = 37,855.38/x
  3. Step 3: Cross multiply
    107,981.40x = 161,966.97 × 37,855.38
  4. Step 4: Simplify right side
    107,981.40x = 6,131,321,196.80
  5. Step 5: Solve for x
    x = 6,131,321,196.80/107,981.40
  6. Step 6: Final answer
    x = 56,781.27

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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.