Home / 131,351.80-197,076.30-42,608.20

Finding the Fourth Proportional to 131,351.80, 197,076.30 and 42,608.20

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Solution

The fourth proportional to 131,351.80, 197,076.30 and 42,608.20 is: 63,928.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,351.80 : 197,076.30 = 42,608.20 : x
  2. Step 2: Convert to fraction form
    131,351.80/197,076.30 = 42,608.20/x
  3. Step 3: Cross multiply
    131,351.80x = 197,076.30 × 42,608.20
  4. Step 4: Simplify right side
    131,351.80x = 8,397,066,405.66
  5. Step 5: Solve for x
    x = 8,397,066,405.66/131,351.80
  6. Step 6: Final answer
    x = 63,928.06

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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.