Home / 109,664.70-164,278.35-76,422.30

Finding the Fourth Proportional to 109,664.70, 164,278.35 and 76,422.30

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Solution

The fourth proportional to 109,664.70, 164,278.35 and 76,422.30 is: 114,481.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,664.70 : 164,278.35 = 76,422.30 : x
  2. Step 2: Convert to fraction form
    109,664.70/164,278.35 = 76,422.30/x
  3. Step 3: Cross multiply
    109,664.70x = 164,278.35 × 76,422.30
  4. Step 4: Simplify right side
    109,664.70x = 12,554,529,347.21
  5. Step 5: Solve for x
    x = 12,554,529,347.21/109,664.70
  6. Step 6: Final answer
    x = 114,481.04

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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.