Home / 84,127.68-115,960.19-73,197.90

Finding the Fourth Proportional to 84,127.68, 115,960.19 and 73,197.90

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Solution

The fourth proportional to 84,127.68, 115,960.19 and 73,197.90 is: 100,894.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,127.68 : 115,960.19 = 73,197.90 : x
  2. Step 2: Convert to fraction form
    84,127.68/115,960.19 = 73,197.90/x
  3. Step 3: Cross multiply
    84,127.68x = 115,960.19 × 73,197.90
  4. Step 4: Simplify right side
    84,127.68x = 8,488,042,574.60
  5. Step 5: Solve for x
    x = 8,488,042,574.60/84,127.68
  6. Step 6: Final answer
    x = 100,894.77

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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.