Home / 142,992.96-197,353.89-79,351.26

Finding the Fourth Proportional to 142,992.96, 197,353.89 and 79,351.26

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Solution

The fourth proportional to 142,992.96, 197,353.89 and 79,351.26 is: 109,517.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,992.96 : 197,353.89 = 79,351.26 : x
  2. Step 2: Convert to fraction form
    142,992.96/197,353.89 = 79,351.26/x
  3. Step 3: Cross multiply
    142,992.96x = 197,353.89 × 79,351.26
  4. Step 4: Simplify right side
    142,992.96x = 15,660,279,837.40
  5. Step 5: Solve for x
    x = 15,660,279,837.40/142,992.96
  6. Step 6: Final answer
    x = 109,517.84

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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.