Home / 163,725.76-225,945.21-100,098.64

Finding the Fourth Proportional to 163,725.76, 225,945.21 and 100,098.64

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Solution

The fourth proportional to 163,725.76, 225,945.21 and 100,098.64 is: 138,138.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,725.76 : 225,945.21 = 100,098.64 : x
  2. Step 2: Convert to fraction form
    163,725.76/225,945.21 = 100,098.64/x
  3. Step 3: Cross multiply
    163,725.76x = 225,945.21 × 100,098.64
  4. Step 4: Simplify right side
    163,725.76x = 22,616,808,235.51
  5. Step 5: Solve for x
    x = 22,616,808,235.51/163,725.76
  6. Step 6: Final answer
    x = 138,138.36

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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.