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Finding the Fourth Proportional to 163,071, 225,037.86 and 91,450.80

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Solution

The fourth proportional to 163,071, 225,037.86 and 91,450.80 is: 126,202.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,071 : 225,037.86 = 91,450.80 : x
  2. Step 2: Convert to fraction form
    163,071/225,037.86 = 91,450.80/x
  3. Step 3: Cross multiply
    163,071x = 225,037.86 × 91,450.80
  4. Step 4: Simplify right side
    163,071x = 20,579,892,327.29
  5. Step 5: Solve for x
    x = 20,579,892,327.29/163,071
  6. Step 6: Final answer
    x = 126,202.04

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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.