Home / 161,942.84-223,481.45-90,321.02

Finding the Fourth Proportional to 161,942.84, 223,481.45 and 90,321.02

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Solution

The fourth proportional to 161,942.84, 223,481.45 and 90,321.02 is: 124,643.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,942.84 : 223,481.45 = 90,321.02 : x
  2. Step 2: Convert to fraction form
    161,942.84/223,481.45 = 90,321.02/x
  3. Step 3: Cross multiply
    161,942.84x = 223,481.45 × 90,321.02
  4. Step 4: Simplify right side
    161,942.84x = 20,185,071,623.47
  5. Step 5: Solve for x
    x = 20,185,071,623.47/161,942.84
  6. Step 6: Final answer
    x = 124,643.19

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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.