Home / 120,357.33-166,098.83-72,609.66

Finding the Fourth Proportional to 120,357.33, 166,098.83 and 72,609.66

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Solution

The fourth proportional to 120,357.33, 166,098.83 and 72,609.66 is: 100,204.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,357.33 : 166,098.83 = 72,609.66 : x
  2. Step 2: Convert to fraction form
    120,357.33/166,098.83 = 72,609.66/x
  3. Step 3: Cross multiply
    120,357.33x = 166,098.83 × 72,609.66
  4. Step 4: Simplify right side
    120,357.33x = 12,060,379,572.70
  5. Step 5: Solve for x
    x = 12,060,379,572.70/120,357.33
  6. Step 6: Final answer
    x = 100,204.78

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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.