Home / 142,997.96-197,360.80-79,356.26

Finding the Fourth Proportional to 142,997.96, 197,360.80 and 79,356.26

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Solution

The fourth proportional to 142,997.96, 197,360.80 and 79,356.26 is: 109,524.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,997.96 : 197,360.80 = 79,356.26 : x
  2. Step 2: Convert to fraction form
    142,997.96/197,360.80 = 79,356.26/x
  3. Step 3: Cross multiply
    142,997.96x = 197,360.80 × 79,356.26
  4. Step 4: Simplify right side
    142,997.96x = 15,661,814,958.61
  5. Step 5: Solve for x
    x = 15,661,814,958.61/142,997.96
  6. Step 6: Final answer
    x = 109,524.74

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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.