Home / 133,235.92-183,658.44-90,721.36

Finding the Fourth Proportional to 133,235.92, 183,658.44 and 90,721.36

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Solution

The fourth proportional to 133,235.92, 183,658.44 and 90,721.36 is: 125,054.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,235.92 : 183,658.44 = 90,721.36 : x
  2. Step 2: Convert to fraction form
    133,235.92/183,658.44 = 90,721.36/x
  3. Step 3: Cross multiply
    133,235.92x = 183,658.44 × 90,721.36
  4. Step 4: Simplify right side
    133,235.92x = 16,661,743,452.28
  5. Step 5: Solve for x
    x = 16,661,743,452.28/133,235.92
  6. Step 6: Final answer
    x = 125,054.44

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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.