Home / 151,979.81-227,902.73-80,885.30

Finding the Fourth Proportional to 151,979.81, 227,902.73 and 80,885.30

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Solution

The fourth proportional to 151,979.81, 227,902.73 and 80,885.30 is: 121,292.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,979.81 : 227,902.73 = 80,885.30 : x
  2. Step 2: Convert to fraction form
    151,979.81/227,902.73 = 80,885.30/x
  3. Step 3: Cross multiply
    151,979.81x = 227,902.73 × 80,885.30
  4. Step 4: Simplify right side
    151,979.81x = 18,433,979,142.93
  5. Step 5: Solve for x
    x = 18,433,979,142.93/151,979.81
  6. Step 6: Final answer
    x = 121,292.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.