Home / 161,822.05-223,309.79-90,200.54

Finding the Fourth Proportional to 161,822.05, 223,309.79 and 90,200.54

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Solution

The fourth proportional to 161,822.05, 223,309.79 and 90,200.54 is: 124,474.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,822.05 : 223,309.79 = 90,200.54 : x
  2. Step 2: Convert to fraction form
    161,822.05/223,309.79 = 90,200.54/x
  3. Step 3: Cross multiply
    161,822.05x = 223,309.79 × 90,200.54
  4. Step 4: Simplify right side
    161,822.05x = 20,142,662,581.00
  5. Step 5: Solve for x
    x = 20,142,662,581.00/161,822.05
  6. Step 6: Final answer
    x = 124,474.15

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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.