Home / 154,162.92-231,239.46-69,861.36

Finding the Fourth Proportional to 154,162.92, 231,239.46 and 69,861.36

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Solution

The fourth proportional to 154,162.92, 231,239.46 and 69,861.36 is: 104,789.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,162.92 : 231,239.46 = 69,861.36 : x
  2. Step 2: Convert to fraction form
    154,162.92/231,239.46 = 69,861.36/x
  3. Step 3: Cross multiply
    154,162.92x = 231,239.46 × 69,861.36
  4. Step 4: Simplify right side
    154,162.92x = 16,154,703,161.27
  5. Step 5: Solve for x
    x = 16,154,703,161.27/154,162.92
  6. Step 6: Final answer
    x = 104,789.81

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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.