Home / 131,100.40-196,629-56,232.64

Finding the Fourth Proportional to 131,100.40, 196,629 and 56,232.64

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Solution

The fourth proportional to 131,100.40, 196,629 and 56,232.64 is: 84,339.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,100.40 : 196,629 = 56,232.64 : x
  2. Step 2: Convert to fraction form
    131,100.40/196,629 = 56,232.64/x
  3. Step 3: Cross multiply
    131,100.40x = 196,629 × 56,232.64
  4. Step 4: Simplify right side
    131,100.40x = 11,056,967,770.56
  5. Step 5: Solve for x
    x = 11,056,967,770.56/131,100.40
  6. Step 6: Final answer
    x = 84,339.70

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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.