Home / 143,576.42-197,922.99-91,887.82

Finding the Fourth Proportional to 143,576.42, 197,922.99 and 91,887.82

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Solution

The fourth proportional to 143,576.42, 197,922.99 and 91,887.82 is: 126,669.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,576.42 : 197,922.99 = 91,887.82 : x
  2. Step 2: Convert to fraction form
    143,576.42/197,922.99 = 91,887.82/x
  3. Step 3: Cross multiply
    143,576.42x = 197,922.99 × 91,887.82
  4. Step 4: Simplify right side
    143,576.42x = 18,186,712,078.98
  5. Step 5: Solve for x
    x = 18,186,712,078.98/143,576.42
  6. Step 6: Final answer
    x = 126,669.21

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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.