Home / 102,918.40-154,388.94-32,781.58

Finding the Fourth Proportional to 102,918.40, 154,388.94 and 32,781.58

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Solution

The fourth proportional to 102,918.40, 154,388.94 and 32,781.58 is: 49,175.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,918.40 : 154,388.94 = 32,781.58 : x
  2. Step 2: Convert to fraction form
    102,918.40/154,388.94 = 32,781.58/x
  3. Step 3: Cross multiply
    102,918.40x = 154,388.94 × 32,781.58
  4. Step 4: Simplify right side
    102,918.40x = 5,061,113,387.73
  5. Step 5: Solve for x
    x = 5,061,113,387.73/102,918.40
  6. Step 6: Final answer
    x = 49,175.98

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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.