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Finding the Fourth Proportional to 163,077.02, 225,048.18 and 90,481.28

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Solution

The fourth proportional to 163,077.02, 225,048.18 and 90,481.28 is: 124,865.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,077.02 : 225,048.18 = 90,481.28 : x
  2. Step 2: Convert to fraction form
    163,077.02/225,048.18 = 90,481.28/x
  3. Step 3: Cross multiply
    163,077.02x = 225,048.18 × 90,481.28
  4. Step 4: Simplify right side
    163,077.02x = 20,362,647,388.07
  5. Step 5: Solve for x
    x = 20,362,647,388.07/163,077.02
  6. Step 6: Final answer
    x = 124,865.22

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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.