Home / 133,198.56-183,806.64-76,610.88

Finding the Fourth Proportional to 133,198.56, 183,806.64 and 76,610.88

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Solution

The fourth proportional to 133,198.56, 183,806.64 and 76,610.88 is: 105,718.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,198.56 : 183,806.64 = 76,610.88 : x
  2. Step 2: Convert to fraction form
    133,198.56/183,806.64 = 76,610.88/x
  3. Step 3: Cross multiply
    133,198.56x = 183,806.64 × 76,610.88
  4. Step 4: Simplify right side
    133,198.56x = 14,081,588,440.24
  5. Step 5: Solve for x
    x = 14,081,588,440.24/133,198.56
  6. Step 6: Final answer
    x = 105,718.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.