Home / 109,964.70-164,947.05-100,123.20

Finding the Fourth Proportional to 109,964.70, 164,947.05 and 100,123.20

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Solution

The fourth proportional to 109,964.70, 164,947.05 and 100,123.20 is: 150,184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,964.70 : 164,947.05 = 100,123.20 : x
  2. Step 2: Convert to fraction form
    109,964.70/164,947.05 = 100,123.20/x
  3. Step 3: Cross multiply
    109,964.70x = 164,947.05 × 100,123.20
  4. Step 4: Simplify right side
    109,964.70x = 16,515,026,476.56
  5. Step 5: Solve for x
    x = 16,515,026,476.56/109,964.70
  6. Step 6: Final answer
    x = 150,184.80

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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.