Home / 125,728.47-188,619.13-36,974.54

Finding the Fourth Proportional to 125,728.47, 188,619.13 and 36,974.54

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Solution

The fourth proportional to 125,728.47, 188,619.13 and 36,974.54 is: 55,469.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,728.47 : 188,619.13 = 36,974.54 : x
  2. Step 2: Convert to fraction form
    125,728.47/188,619.13 = 36,974.54/x
  3. Step 3: Cross multiply
    125,728.47x = 188,619.13 × 36,974.54
  4. Step 4: Simplify right side
    125,728.47x = 6,974,106,084.72
  5. Step 5: Solve for x
    x = 6,974,106,084.72/125,728.47
  6. Step 6: Final answer
    x = 55,469.59

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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.