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Finding the Fourth Proportional to 161,662.80, 223,121.04 and 123,349.80

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Solution

The fourth proportional to 161,662.80, 223,121.04 and 123,349.80 is: 170,242.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,662.80 : 223,121.04 = 123,349.80 : x
  2. Step 2: Convert to fraction form
    161,662.80/223,121.04 = 123,349.80/x
  3. Step 3: Cross multiply
    161,662.80x = 223,121.04 × 123,349.80
  4. Step 4: Simplify right side
    161,662.80x = 27,521,935,659.79
  5. Step 5: Solve for x
    x = 27,521,935,659.79/161,662.80
  6. Step 6: Final answer
    x = 170,242.85

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1.5x scale

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.