Home / 133,221.54-199,863.64-39,729.18

Finding the Fourth Proportional to 133,221.54, 199,863.64 and 39,729.18

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Solution

The fourth proportional to 133,221.54, 199,863.64 and 39,729.18 is: 59,603.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,221.54 : 199,863.64 = 39,729.18 : x
  2. Step 2: Convert to fraction form
    133,221.54/199,863.64 = 39,729.18/x
  3. Step 3: Cross multiply
    133,221.54x = 199,863.64 × 39,729.18
  4. Step 4: Simplify right side
    133,221.54x = 7,940,418,529.02
  5. Step 5: Solve for x
    x = 7,940,418,529.02/133,221.54
  6. Step 6: Final answer
    x = 59,603.11

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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.