Home / 120,910.92-166,805.28-75,510.09

Finding the Fourth Proportional to 120,910.92, 166,805.28 and 75,510.09

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Solution

The fourth proportional to 120,910.92, 166,805.28 and 75,510.09 is: 104,171.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,910.92 : 166,805.28 = 75,510.09 : x
  2. Step 2: Convert to fraction form
    120,910.92/166,805.28 = 75,510.09/x
  3. Step 3: Cross multiply
    120,910.92x = 166,805.28 × 75,510.09
  4. Step 4: Simplify right side
    120,910.92x = 12,595,481,705.28
  5. Step 5: Solve for x
    x = 12,595,481,705.28/120,910.92
  6. Step 6: Final answer
    x = 104,171.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.