Home / 131,190.36-181,056.60-80,232.88

Finding the Fourth Proportional to 131,190.36, 181,056.60 and 80,232.88

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Solution

The fourth proportional to 131,190.36, 181,056.60 and 80,232.88 is: 110,729.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,190.36 : 181,056.60 = 80,232.88 : x
  2. Step 2: Convert to fraction form
    131,190.36/181,056.60 = 80,232.88/x
  3. Step 3: Cross multiply
    131,190.36x = 181,056.60 × 80,232.88
  4. Step 4: Simplify right side
    131,190.36x = 14,526,692,461.01
  5. Step 5: Solve for x
    x = 14,526,692,461.01/131,190.36
  6. Step 6: Final answer
    x = 110,729.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.