Home / 131,236.44-196,886-42,490.05

Finding the Fourth Proportional to 131,236.44, 196,886 and 42,490.05

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Solution

The fourth proportional to 131,236.44, 196,886 and 42,490.05 is: 63,745.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,236.44 : 196,886 = 42,490.05 : x
  2. Step 2: Convert to fraction form
    131,236.44/196,886 = 42,490.05/x
  3. Step 3: Cross multiply
    131,236.44x = 196,886 × 42,490.05
  4. Step 4: Simplify right side
    131,236.44x = 8,365,695,984.30
  5. Step 5: Solve for x
    x = 8,365,695,984.30/131,236.44
  6. Step 6: Final answer
    x = 63,745.22

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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.