Home / 138,986.43-191,813.07-116,285.37

Finding the Fourth Proportional to 138,986.43, 191,813.07 and 116,285.37

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Solution

The fourth proportional to 138,986.43, 191,813.07 and 116,285.37 is: 160,483.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,986.43 : 191,813.07 = 116,285.37 : x
  2. Step 2: Convert to fraction form
    138,986.43/191,813.07 = 116,285.37/x
  3. Step 3: Cross multiply
    138,986.43x = 191,813.07 × 116,285.37
  4. Step 4: Simplify right side
    138,986.43x = 22,305,053,815.79
  5. Step 5: Solve for x
    x = 22,305,053,815.79/138,986.43
  6. Step 6: Final answer
    x = 160,483.68

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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.