Home / 220,121.36-330,187.04-124,669.52

Finding the Fourth Proportional to 220,121.36, 330,187.04 and 124,669.52

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Solution

The fourth proportional to 220,121.36, 330,187.04 and 124,669.52 is: 187,007.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,121.36 : 330,187.04 = 124,669.52 : x
  2. Step 2: Convert to fraction form
    220,121.36/330,187.04 = 124,669.52/x
  3. Step 3: Cross multiply
    220,121.36x = 330,187.04 × 124,669.52
  4. Step 4: Simplify right side
    220,121.36x = 41,164,259,787.02
  5. Step 5: Solve for x
    x = 41,164,259,787.02/220,121.36
  6. Step 6: Final answer
    x = 187,007.11

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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.