Home / 143,217-197,617.47-82,775.91

Finding the Fourth Proportional to 143,217, 197,617.47 and 82,775.91

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Solution

The fourth proportional to 143,217, 197,617.47 and 82,775.91 is: 114,218.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,217 : 197,617.47 = 82,775.91 : x
  2. Step 2: Convert to fraction form
    143,217/197,617.47 = 82,775.91/x
  3. Step 3: Cross multiply
    143,217x = 197,617.47 × 82,775.91
  4. Step 4: Simplify right side
    143,217x = 16,357,965,911.15
  5. Step 5: Solve for x
    x = 16,357,965,911.15/143,217
  6. Step 6: Final answer
    x = 114,218.05

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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.