Home / 157,906.27-217,908.03-86,284.75

Finding the Fourth Proportional to 157,906.27, 217,908.03 and 86,284.75

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Solution

The fourth proportional to 157,906.27, 217,908.03 and 86,284.75 is: 119,071.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,906.27 : 217,908.03 = 86,284.75 : x
  2. Step 2: Convert to fraction form
    157,906.27/217,908.03 = 86,284.75/x
  3. Step 3: Cross multiply
    157,906.27x = 217,908.03 × 86,284.75
  4. Step 4: Simplify right side
    157,906.27x = 18,802,139,891.54
  5. Step 5: Solve for x
    x = 18,802,139,891.54/157,906.27
  6. Step 6: Final answer
    x = 119,071.52

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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.