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Finding the Fourth Proportional to 163,047.83, 225,006.03 and 91,427.90

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Solution

The fourth proportional to 163,047.83, 225,006.03 and 91,427.90 is: 126,170.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,047.83 : 225,006.03 = 91,427.90 : x
  2. Step 2: Convert to fraction form
    163,047.83/225,006.03 = 91,427.90/x
  3. Step 3: Cross multiply
    163,047.83x = 225,006.03 × 91,427.90
  4. Step 4: Simplify right side
    163,047.83x = 20,571,827,685.21
  5. Step 5: Solve for x
    x = 20,571,827,685.21/163,047.83
  6. Step 6: Final answer
    x = 126,170.51

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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.