Home / 118,821.12-178,106.32-43,893.28

Finding the Fourth Proportional to 118,821.12, 178,106.32 and 43,893.28

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Solution

The fourth proportional to 118,821.12, 178,106.32 and 43,893.28 is: 65,793.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,821.12 : 178,106.32 = 43,893.28 : x
  2. Step 2: Convert to fraction form
    118,821.12/178,106.32 = 43,893.28/x
  3. Step 3: Cross multiply
    118,821.12x = 178,106.32 × 43,893.28
  4. Step 4: Simplify right side
    118,821.12x = 7,817,670,573.53
  5. Step 5: Solve for x
    x = 7,817,670,573.53/118,821.12
  6. Step 6: Final answer
    x = 65,793.61

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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.