Home / 143,001.49-197,359.56-82,571.98

Finding the Fourth Proportional to 143,001.49, 197,359.56 and 82,571.98

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Solution

The fourth proportional to 143,001.49, 197,359.56 and 82,571.98 is: 113,959.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,001.49 : 197,359.56 = 82,571.98 : x
  2. Step 2: Convert to fraction form
    143,001.49/197,359.56 = 82,571.98/x
  3. Step 3: Cross multiply
    143,001.49x = 197,359.56 × 82,571.98
  4. Step 4: Simplify right side
    143,001.49x = 16,296,369,641.13
  5. Step 5: Solve for x
    x = 16,296,369,641.13/143,001.49
  6. Step 6: Final answer
    x = 113,959.44

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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.