Home / 135,099.27-186,446.64-74,668.61

Finding the Fourth Proportional to 135,099.27, 186,446.64 and 74,668.61

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Solution

The fourth proportional to 135,099.27, 186,446.64 and 74,668.61 is: 103,048.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,099.27 : 186,446.64 = 74,668.61 : x
  2. Step 2: Convert to fraction form
    135,099.27/186,446.64 = 74,668.61/x
  3. Step 3: Cross multiply
    135,099.27x = 186,446.64 × 74,668.61
  4. Step 4: Simplify right side
    135,099.27x = 13,921,711,447.97
  5. Step 5: Solve for x
    x = 13,921,711,447.97/135,099.27
  6. Step 6: Final answer
    x = 103,048.01

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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.