Home / 111,378.06-166,668-96,436.72

Finding the Fourth Proportional to 111,378.06, 166,668 and 96,436.72

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Solution

The fourth proportional to 111,378.06, 166,668 and 96,436.72 is: 144,309.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,378.06 : 166,668 = 96,436.72 : x
  2. Step 2: Convert to fraction form
    111,378.06/166,668 = 96,436.72/x
  3. Step 3: Cross multiply
    111,378.06x = 166,668 × 96,436.72
  4. Step 4: Simplify right side
    111,378.06x = 16,072,915,248.96
  5. Step 5: Solve for x
    x = 16,072,915,248.96/111,378.06
  6. Step 6: Final answer
    x = 144,309.53

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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.