Home / 207,645.45-286,553.39-122,761.77

Finding the Fourth Proportional to 207,645.45, 286,553.39 and 122,761.77

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Solution

The fourth proportional to 207,645.45, 286,553.39 and 122,761.77 is: 169,412.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,645.45 : 286,553.39 = 122,761.77 : x
  2. Step 2: Convert to fraction form
    207,645.45/286,553.39 = 122,761.77/x
  3. Step 3: Cross multiply
    207,645.45x = 286,553.39 × 122,761.77
  4. Step 4: Simplify right side
    207,645.45x = 35,177,801,355.90
  5. Step 5: Solve for x
    x = 35,177,801,355.90/207,645.45
  6. Step 6: Final answer
    x = 169,412.82

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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.