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Finding the Fourth Proportional to 163,076.83, 225,024.28 and 90,478.56

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Solution

The fourth proportional to 163,076.83, 225,024.28 and 90,478.56 is: 124,848.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,076.83 : 225,024.28 = 90,478.56 : x
  2. Step 2: Convert to fraction form
    163,076.83/225,024.28 = 90,478.56/x
  3. Step 3: Cross multiply
    163,076.83x = 225,024.28 × 90,478.56
  4. Step 4: Simplify right side
    163,076.83x = 20,359,872,819.44
  5. Step 5: Solve for x
    x = 20,359,872,819.44/163,076.83
  6. Step 6: Final answer
    x = 124,848.35

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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.