Home / 163,640.36-225,825.06-92,019.78

Finding the Fourth Proportional to 163,640.36, 225,825.06 and 92,019.78

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Solution

The fourth proportional to 163,640.36, 225,825.06 and 92,019.78 is: 126,988.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,640.36 : 225,825.06 = 92,019.78 : x
  2. Step 2: Convert to fraction form
    163,640.36/225,825.06 = 92,019.78/x
  3. Step 3: Cross multiply
    163,640.36x = 225,825.06 × 92,019.78
  4. Step 4: Simplify right side
    163,640.36x = 20,780,372,339.69
  5. Step 5: Solve for x
    x = 20,780,372,339.69/163,640.36
  6. Step 6: Final answer
    x = 126,988.06

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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.