Home / 133,043.16-199,557.45-80,438.52

Finding the Fourth Proportional to 133,043.16, 199,557.45 and 80,438.52

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Solution

The fourth proportional to 133,043.16, 199,557.45 and 80,438.52 is: 120,653.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,043.16 : 199,557.45 = 80,438.52 : x
  2. Step 2: Convert to fraction form
    133,043.16/199,557.45 = 80,438.52/x
  3. Step 3: Cross multiply
    133,043.16x = 199,557.45 × 80,438.52
  4. Step 4: Simplify right side
    133,043.16x = 16,052,105,932.97
  5. Step 5: Solve for x
    x = 16,052,105,932.97/133,043.16
  6. Step 6: Final answer
    x = 120,653.37

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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.