Home / 136,380.06-188,448.57-106,243.20

Finding the Fourth Proportional to 136,380.06, 188,448.57 and 106,243.20

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Solution

The fourth proportional to 136,380.06, 188,448.57 and 106,243.20 is: 146,805.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,380.06 : 188,448.57 = 106,243.20 : x
  2. Step 2: Convert to fraction form
    136,380.06/188,448.57 = 106,243.20/x
  3. Step 3: Cross multiply
    136,380.06x = 188,448.57 × 106,243.20
  4. Step 4: Simplify right side
    136,380.06x = 20,021,379,112.22
  5. Step 5: Solve for x
    x = 20,021,379,112.22/136,380.06
  6. Step 6: Final answer
    x = 146,805.77

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1.5x scale

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.