Home / 133,836.17-184,680.81-80,120.00

Finding the Fourth Proportional to 133,836.17, 184,680.81 and 80,120.00

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Solution

The fourth proportional to 133,836.17, 184,680.81 and 80,120.00 is: 110,557.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,836.17 : 184,680.81 = 80,120.00 : x
  2. Step 2: Convert to fraction form
    133,836.17/184,680.81 = 80,120.00/x
  3. Step 3: Cross multiply
    133,836.17x = 184,680.81 × 80,120.00
  4. Step 4: Simplify right side
    133,836.17x = 14,796,626,958.90
  5. Step 5: Solve for x
    x = 14,796,626,958.90/133,836.17
  6. Step 6: Final answer
    x = 110,557.76

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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.