Home / 136,914.77-204,872.59-80,781.77

Finding the Fourth Proportional to 136,914.77, 204,872.59 and 80,781.77

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Solution

The fourth proportional to 136,914.77, 204,872.59 and 80,781.77 is: 120,877.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,914.77 : 204,872.59 = 80,781.77 : x
  2. Step 2: Convert to fraction form
    136,914.77/204,872.59 = 80,781.77/x
  3. Step 3: Cross multiply
    136,914.77x = 204,872.59 × 80,781.77
  4. Step 4: Simplify right side
    136,914.77x = 16,549,971,057.84
  5. Step 5: Solve for x
    x = 16,549,971,057.84/136,914.77
  6. Step 6: Final answer
    x = 120,877.91

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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.