Home / 135,160.52-186,535.10-74,735.73

Finding the Fourth Proportional to 135,160.52, 186,535.10 and 74,735.73

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Solution

The fourth proportional to 135,160.52, 186,535.10 and 74,735.73 is: 103,142.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,160.52 : 186,535.10 = 74,735.73 : x
  2. Step 2: Convert to fraction form
    135,160.52/186,535.10 = 74,735.73/x
  3. Step 3: Cross multiply
    135,160.52x = 186,535.10 × 74,735.73
  4. Step 4: Simplify right side
    135,160.52x = 13,940,837,055.96
  5. Step 5: Solve for x
    x = 13,940,837,055.96/135,160.52
  6. Step 6: Final answer
    x = 103,142.82

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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.