Home / 123,047.24-169,805.28-66,458.60

Finding the Fourth Proportional to 123,047.24, 169,805.28 and 66,458.60

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Solution

The fourth proportional to 123,047.24, 169,805.28 and 66,458.60 is: 91,712.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,047.24 : 169,805.28 = 66,458.60 : x
  2. Step 2: Convert to fraction form
    123,047.24/169,805.28 = 66,458.60/x
  3. Step 3: Cross multiply
    123,047.24x = 169,805.28 × 66,458.60
  4. Step 4: Simplify right side
    123,047.24x = 11,285,021,181.41
  5. Step 5: Solve for x
    x = 11,285,021,181.41/123,047.24
  6. Step 6: Final answer
    x = 91,712.92

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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.