Home / 109,837.80-164,562.30-102,839.40

Finding the Fourth Proportional to 109,837.80, 164,562.30 and 102,839.40

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Solution

The fourth proportional to 109,837.80, 164,562.30 and 102,839.40 is: 154,077.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,837.80 : 164,562.30 = 102,839.40 : x
  2. Step 2: Convert to fraction form
    109,837.80/164,562.30 = 102,839.40/x
  3. Step 3: Cross multiply
    109,837.80x = 164,562.30 × 102,839.40
  4. Step 4: Simplify right side
    109,837.80x = 16,923,488,194.62
  5. Step 5: Solve for x
    x = 16,923,488,194.62/109,837.80
  6. Step 6: Final answer
    x = 154,077.09

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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.