Home / 136,117.20-204,208.20-57,190.80

Finding the Fourth Proportional to 136,117.20, 204,208.20 and 57,190.80

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Solution

The fourth proportional to 136,117.20, 204,208.20 and 57,190.80 is: 85,799.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,117.20 : 204,208.20 = 57,190.80 : x
  2. Step 2: Convert to fraction form
    136,117.20/204,208.20 = 57,190.80/x
  3. Step 3: Cross multiply
    136,117.20x = 204,208.20 × 57,190.80
  4. Step 4: Simplify right side
    136,117.20x = 11,678,830,324.56
  5. Step 5: Solve for x
    x = 11,678,830,324.56/136,117.20
  6. Step 6: Final answer
    x = 85,799.81

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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.