Home / 131,357.44-196,985.28-42,589.60

Finding the Fourth Proportional to 131,357.44, 196,985.28 and 42,589.60

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Solution

The fourth proportional to 131,357.44, 196,985.28 and 42,589.60 is: 63,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,357.44 : 196,985.28 = 42,589.60 : x
  2. Step 2: Convert to fraction form
    131,357.44/196,985.28 = 42,589.60/x
  3. Step 3: Cross multiply
    131,357.44x = 196,985.28 × 42,589.60
  4. Step 4: Simplify right side
    131,357.44x = 8,389,524,281.09
  5. Step 5: Solve for x
    x = 8,389,524,281.09/131,357.44
  6. Step 6: Final answer
    x = 63,867.90

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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.