Home / 109,905.20-164,857.80-26,799.20

Finding the Fourth Proportional to 109,905.20, 164,857.80 and 26,799.20

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Solution

The fourth proportional to 109,905.20, 164,857.80 and 26,799.20 is: 40,198.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,905.20 : 164,857.80 = 26,799.20 : x
  2. Step 2: Convert to fraction form
    109,905.20/164,857.80 = 26,799.20/x
  3. Step 3: Cross multiply
    109,905.20x = 164,857.80 × 26,799.20
  4. Step 4: Simplify right side
    109,905.20x = 4,418,057,153.76
  5. Step 5: Solve for x
    x = 4,418,057,153.76/109,905.20
  6. Step 6: Final answer
    x = 40,198.80

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1.5x scale

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.