Home / 136,629.80-204,983.10-57,781.80

Finding the Fourth Proportional to 136,629.80, 204,983.10 and 57,781.80

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Solution

The fourth proportional to 136,629.80, 204,983.10 and 57,781.80 is: 86,688.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,629.80 : 204,983.10 = 57,781.80 : x
  2. Step 2: Convert to fraction form
    136,629.80/204,983.10 = 57,781.80/x
  3. Step 3: Cross multiply
    136,629.80x = 204,983.10 × 57,781.80
  4. Step 4: Simplify right side
    136,629.80x = 11,844,292,487.58
  5. Step 5: Solve for x
    x = 11,844,292,487.58/136,629.80
  6. Step 6: Final answer
    x = 86,688.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.