Home / 123,054.92-169,815.79-66,466.30

Finding the Fourth Proportional to 123,054.92, 169,815.79 and 66,466.30

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Solution

The fourth proportional to 123,054.92, 169,815.79 and 66,466.30 is: 91,723.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,054.92 : 169,815.79 = 66,466.30 : x
  2. Step 2: Convert to fraction form
    123,054.92/169,815.79 = 66,466.30/x
  3. Step 3: Cross multiply
    123,054.92x = 169,815.79 × 66,466.30
  4. Step 4: Simplify right side
    123,054.92x = 11,287,027,242.88
  5. Step 5: Solve for x
    x = 11,287,027,242.88/123,054.92
  6. Step 6: Final answer
    x = 91,723.49

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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.