Home / 133,333.64-199,781.75-80,758.16

Finding the Fourth Proportional to 133,333.64, 199,781.75 and 80,758.16

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Solution

The fourth proportional to 133,333.64, 199,781.75 and 80,758.16 is: 121,004.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,333.64 : 199,781.75 = 80,758.16 : x
  2. Step 2: Convert to fraction form
    133,333.64/199,781.75 = 80,758.16/x
  3. Step 3: Cross multiply
    133,333.64x = 199,781.75 × 80,758.16
  4. Step 4: Simplify right side
    133,333.64x = 16,134,005,734.57
  5. Step 5: Solve for x
    x = 16,134,005,734.57/133,333.64
  6. Step 6: Final answer
    x = 121,004.77

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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.