Home / 120,877.92-166,822.80-73,143.04

Finding the Fourth Proportional to 120,877.92, 166,822.80 and 73,143.04

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Solution

The fourth proportional to 120,877.92, 166,822.80 and 73,143.04 is: 100,944.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,877.92 : 166,822.80 = 73,143.04 : x
  2. Step 2: Convert to fraction form
    120,877.92/166,822.80 = 73,143.04/x
  3. Step 3: Cross multiply
    120,877.92x = 166,822.80 × 73,143.04
  4. Step 4: Simplify right side
    120,877.92x = 12,201,926,733.31
  5. Step 5: Solve for x
    x = 12,201,926,733.31/120,877.92
  6. Step 6: Final answer
    x = 100,944.21

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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.