Home / 122,639.82-169,371.45-84,498.54

Finding the Fourth Proportional to 122,639.82, 169,371.45 and 84,498.54

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Solution

The fourth proportional to 122,639.82, 169,371.45 and 84,498.54 is: 116,696.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,639.82 : 169,371.45 = 84,498.54 : x
  2. Step 2: Convert to fraction form
    122,639.82/169,371.45 = 84,498.54/x
  3. Step 3: Cross multiply
    122,639.82x = 169,371.45 × 84,498.54
  4. Step 4: Simplify right side
    122,639.82x = 14,311,640,242.68
  5. Step 5: Solve for x
    x = 14,311,640,242.68/122,639.82
  6. Step 6: Final answer
    x = 116,696.52

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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.