Home / 163,669.52-225,875.76-100,019.48

Finding the Fourth Proportional to 163,669.52, 225,875.76 and 100,019.48

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Solution

The fourth proportional to 163,669.52, 225,875.76 and 100,019.48 is: 138,034.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,669.52 : 225,875.76 = 100,019.48 : x
  2. Step 2: Convert to fraction form
    163,669.52/225,875.76 = 100,019.48/x
  3. Step 3: Cross multiply
    163,669.52x = 225,875.76 × 100,019.48
  4. Step 4: Simplify right side
    163,669.52x = 22,591,976,059.80
  5. Step 5: Solve for x
    x = 22,591,976,059.80/163,669.52
  6. Step 6: Final answer
    x = 138,034.11

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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.