Home / 133,320.05-199,488.67-80,044.40

Finding the Fourth Proportional to 133,320.05, 199,488.67 and 80,044.40

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Solution

The fourth proportional to 133,320.05, 199,488.67 and 80,044.40 is: 119,771.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,320.05 : 199,488.67 = 80,044.40 : x
  2. Step 2: Convert to fraction form
    133,320.05/199,488.67 = 80,044.40/x
  3. Step 3: Cross multiply
    133,320.05x = 199,488.67 × 80,044.40
  4. Step 4: Simplify right side
    133,320.05x = 15,967,951,645.81
  5. Step 5: Solve for x
    x = 15,967,951,645.81/133,320.05
  6. Step 6: Final answer
    x = 119,771.57

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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.