Home / 136,293.48-188,087.13-75,864.78

Finding the Fourth Proportional to 136,293.48, 188,087.13 and 75,864.78

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Solution

The fourth proportional to 136,293.48, 188,087.13 and 75,864.78 is: 104,694.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,293.48 : 188,087.13 = 75,864.78 : x
  2. Step 2: Convert to fraction form
    136,293.48/188,087.13 = 75,864.78/x
  3. Step 3: Cross multiply
    136,293.48x = 188,087.13 × 75,864.78
  4. Step 4: Simplify right side
    136,293.48x = 14,269,188,738.28
  5. Step 5: Solve for x
    x = 14,269,188,738.28/136,293.48
  6. Step 6: Final answer
    x = 104,694.58

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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.