Home / 118,926.57-178,039.94-79,385.61

Finding the Fourth Proportional to 118,926.57, 178,039.94 and 79,385.61

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Solution

The fourth proportional to 118,926.57, 178,039.94 and 79,385.61 is: 118,844.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,926.57 : 178,039.94 = 79,385.61 : x
  2. Step 2: Convert to fraction form
    118,926.57/178,039.94 = 79,385.61/x
  3. Step 3: Cross multiply
    118,926.57x = 178,039.94 × 79,385.61
  4. Step 4: Simplify right side
    118,926.57x = 14,133,809,241.26
  5. Step 5: Solve for x
    x = 14,133,809,241.26/118,926.57
  6. Step 6: Final answer
    x = 118,844.84

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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.