Home / 163,308.29-225,359.63-91,691.33

Finding the Fourth Proportional to 163,308.29, 225,359.63 and 91,691.33

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Solution

The fourth proportional to 163,308.29, 225,359.63 and 91,691.33 is: 126,530.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,308.29 : 225,359.63 = 91,691.33 : x
  2. Step 2: Convert to fraction form
    163,308.29/225,359.63 = 91,691.33/x
  3. Step 3: Cross multiply
    163,308.29x = 225,359.63 × 91,691.33
  4. Step 4: Simplify right side
    163,308.29x = 20,663,524,203.01
  5. Step 5: Solve for x
    x = 20,663,524,203.01/163,308.29
  6. Step 6: Final answer
    x = 126,530.77

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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.