Home / 118,740.25-178,110.73-28,782.61

Finding the Fourth Proportional to 118,740.25, 178,110.73 and 28,782.61

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Solution

The fourth proportional to 118,740.25, 178,110.73 and 28,782.61 is: 43,173.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,740.25 : 178,110.73 = 28,782.61 : x
  2. Step 2: Convert to fraction form
    118,740.25/178,110.73 = 28,782.61/x
  3. Step 3: Cross multiply
    118,740.25x = 178,110.73 × 28,782.61
  4. Step 4: Simplify right side
    118,740.25x = 5,126,490,787.85
  5. Step 5: Solve for x
    x = 5,126,490,787.85/118,740.25
  6. Step 6: Final answer
    x = 43,173.99

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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.