Home / 161,949.36-223,490.42-90,334.02

Finding the Fourth Proportional to 161,949.36, 223,490.42 and 90,334.02

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Solution

The fourth proportional to 161,949.36, 223,490.42 and 90,334.02 is: 124,661.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,949.36 : 223,490.42 = 90,334.02 : x
  2. Step 2: Convert to fraction form
    161,949.36/223,490.42 = 90,334.02/x
  3. Step 3: Cross multiply
    161,949.36x = 223,490.42 × 90,334.02
  4. Step 4: Simplify right side
    161,949.36x = 20,188,788,070.09
  5. Step 5: Solve for x
    x = 20,188,788,070.09/161,949.36
  6. Step 6: Final answer
    x = 124,661.12

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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.