Home / 109,553.64-164,398.49-70,139.04

Finding the Fourth Proportional to 109,553.64, 164,398.49 and 70,139.04

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Solution

The fourth proportional to 109,553.64, 164,398.49 and 70,139.04 is: 105,252.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,553.64 : 164,398.49 = 70,139.04 : x
  2. Step 2: Convert to fraction form
    109,553.64/164,398.49 = 70,139.04/x
  3. Step 3: Cross multiply
    109,553.64x = 164,398.49 × 70,139.04
  4. Step 4: Simplify right side
    109,553.64x = 11,530,752,266.05
  5. Step 5: Solve for x
    x = 11,530,752,266.05/109,553.64
  6. Step 6: Final answer
    x = 105,252.11

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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.