Home / 131,493.16-197,181.42-81,571.24

Finding the Fourth Proportional to 131,493.16, 197,181.42 and 81,571.24

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Solution

The fourth proportional to 131,493.16, 197,181.42 and 81,571.24 is: 122,320.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,493.16 : 197,181.42 = 81,571.24 : x
  2. Step 2: Convert to fraction form
    131,493.16/197,181.42 = 81,571.24/x
  3. Step 3: Cross multiply
    131,493.16x = 197,181.42 × 81,571.24
  4. Step 4: Simplify right side
    131,493.16x = 16,084,332,934.36
  5. Step 5: Solve for x
    x = 16,084,332,934.36/131,493.16
  6. Step 6: Final answer
    x = 122,320.68

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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.