Home / 118,926.82-178,040.31-79,385.86

Finding the Fourth Proportional to 118,926.82, 178,040.31 and 79,385.86

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Solution

The fourth proportional to 118,926.82, 178,040.31 and 79,385.86 is: 118,845.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,926.82 : 178,040.31 = 79,385.86 : x
  2. Step 2: Convert to fraction form
    118,926.82/178,040.31 = 79,385.86/x
  3. Step 3: Cross multiply
    118,926.82x = 178,040.31 × 79,385.86
  4. Step 4: Simplify right side
    118,926.82x = 14,133,883,124.02
  5. Step 5: Solve for x
    x = 14,133,883,124.02/118,926.82
  6. Step 6: Final answer
    x = 118,845.21

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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.