Home / 143,203.20-197,566.79-88,730.51

Finding the Fourth Proportional to 143,203.20, 197,566.79 and 88,730.51

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Solution

The fourth proportional to 143,203.20, 197,566.79 and 88,730.51 is: 122,414.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,203.20 : 197,566.79 = 88,730.51 : x
  2. Step 2: Convert to fraction form
    143,203.20/197,566.79 = 88,730.51/x
  3. Step 3: Cross multiply
    143,203.20x = 197,566.79 × 88,730.51
  4. Step 4: Simplify right side
    143,203.20x = 17,530,200,604.28
  5. Step 5: Solve for x
    x = 17,530,200,604.28/143,203.20
  6. Step 6: Final answer
    x = 122,414.87

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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.