Home / 163,078.49-225,072.92-99,453.20

Finding the Fourth Proportional to 163,078.49, 225,072.92 and 99,453.20

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Solution

The fourth proportional to 163,078.49, 225,072.92 and 99,453.20 is: 137,260.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,078.49 : 225,072.92 = 99,453.20 : x
  2. Step 2: Convert to fraction form
    163,078.49/225,072.92 = 99,453.20/x
  3. Step 3: Cross multiply
    163,078.49x = 225,072.92 × 99,453.20
  4. Step 4: Simplify right side
    163,078.49x = 22,384,222,127.34
  5. Step 5: Solve for x
    x = 22,384,222,127.34/163,078.49
  6. Step 6: Final answer
    x = 137,260.42

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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.