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Finding the Fourth Proportional to 163,133.44, 225,134.49 and 91,518.10

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Solution

The fourth proportional to 163,133.44, 225,134.49 and 91,518.10 is: 126,300.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,133.44 : 225,134.49 = 91,518.10 : x
  2. Step 2: Convert to fraction form
    163,133.44/225,134.49 = 91,518.10/x
  3. Step 3: Cross multiply
    163,133.44x = 225,134.49 × 91,518.10
  4. Step 4: Simplify right side
    163,133.44x = 20,603,880,769.27
  5. Step 5: Solve for x
    x = 20,603,880,769.27/163,133.44
  6. Step 6: Final answer
    x = 126,300.78

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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.