Home / 143,222.43-197,625.02-82,781.43

Finding the Fourth Proportional to 143,222.43, 197,625.02 and 82,781.43

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Solution

The fourth proportional to 143,222.43, 197,625.02 and 82,781.43 is: 114,225.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,222.43 : 197,625.02 = 82,781.43 : x
  2. Step 2: Convert to fraction form
    143,222.43/197,625.02 = 82,781.43/x
  3. Step 3: Cross multiply
    143,222.43x = 197,625.02 × 82,781.43
  4. Step 4: Simplify right side
    143,222.43x = 16,359,681,345.47
  5. Step 5: Solve for x
    x = 16,359,681,345.47/143,222.43
  6. Step 6: Final answer
    x = 114,225.69

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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.