Home / 131,629.99-197,057.46-81,549.06

Finding the Fourth Proportional to 131,629.99, 197,057.46 and 81,549.06

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Solution

The fourth proportional to 131,629.99, 197,057.46 and 81,549.06 is: 122,083.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,629.99 : 197,057.46 = 81,549.06 : x
  2. Step 2: Convert to fraction form
    131,629.99/197,057.46 = 81,549.06/x
  3. Step 3: Cross multiply
    131,629.99x = 197,057.46 × 81,549.06
  4. Step 4: Simplify right side
    131,629.99x = 16,069,850,628.99
  5. Step 5: Solve for x
    x = 16,069,850,628.99/131,629.99
  6. Step 6: Final answer
    x = 122,083.51

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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.