Home / 143,177.17-197,560.78-82,753.45

Finding the Fourth Proportional to 143,177.17, 197,560.78 and 82,753.45

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Solution

The fourth proportional to 143,177.17, 197,560.78 and 82,753.45 is: 114,186.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,177.17 : 197,560.78 = 82,753.45 : x
  2. Step 2: Convert to fraction form
    143,177.17/197,560.78 = 82,753.45/x
  3. Step 3: Cross multiply
    143,177.17x = 197,560.78 × 82,753.45
  4. Step 4: Simplify right side
    143,177.17x = 16,348,836,129.69
  5. Step 5: Solve for x
    x = 16,348,836,129.69/143,177.17
  6. Step 6: Final answer
    x = 114,186.05

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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.