Home / 133,236.02-199,755.20-80,633.00

Finding the Fourth Proportional to 133,236.02, 199,755.20 and 80,633.00

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Solution

The fourth proportional to 133,236.02, 199,755.20 and 80,633.00 is: 120,889.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,236.02 : 199,755.20 = 80,633.00 : x
  2. Step 2: Convert to fraction form
    133,236.02/199,755.20 = 80,633.00/x
  3. Step 3: Cross multiply
    133,236.02x = 199,755.20 × 80,633.00
  4. Step 4: Simplify right side
    133,236.02x = 16,106,859,639.66
  5. Step 5: Solve for x
    x = 16,106,859,639.66/133,236.02
  6. Step 6: Final answer
    x = 120,889.68

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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.