Home / 133,169.06-199,849.16-90,367.76

Finding the Fourth Proportional to 133,169.06, 199,849.16 and 90,367.76

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Solution

The fourth proportional to 133,169.06, 199,849.16 and 90,367.76 is: 135,616.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,169.06 : 199,849.16 = 90,367.76 : x
  2. Step 2: Convert to fraction form
    133,169.06/199,849.16 = 90,367.76/x
  3. Step 3: Cross multiply
    133,169.06x = 199,849.16 × 90,367.76
  4. Step 4: Simplify right side
    133,169.06x = 18,059,921,652.62
  5. Step 5: Solve for x
    x = 18,059,921,652.62/133,169.06
  6. Step 6: Final answer
    x = 135,616.50

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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.