Home / 131,980.80-197,922.60-43,237.20

Finding the Fourth Proportional to 131,980.80, 197,922.60 and 43,237.20

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Solution

The fourth proportional to 131,980.80, 197,922.60 and 43,237.20 is: 64,839.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,980.80 : 197,922.60 = 43,237.20 : x
  2. Step 2: Convert to fraction form
    131,980.80/197,922.60 = 43,237.20/x
  3. Step 3: Cross multiply
    131,980.80x = 197,922.60 × 43,237.20
  4. Step 4: Simplify right side
    131,980.80x = 8,557,619,040.72
  5. Step 5: Solve for x
    x = 8,557,619,040.72/131,980.80
  6. Step 6: Final answer
    x = 64,839.88

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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.