Home / 118,999.12-178,441.22-69,091.80

Finding the Fourth Proportional to 118,999.12, 178,441.22 and 69,091.80

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Solution

The fourth proportional to 118,999.12, 178,441.22 and 69,091.80 is: 103,604.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,999.12 : 178,441.22 = 69,091.80 : x
  2. Step 2: Convert to fraction form
    118,999.12/178,441.22 = 69,091.80/x
  3. Step 3: Cross multiply
    118,999.12x = 178,441.22 × 69,091.80
  4. Step 4: Simplify right side
    118,999.12x = 12,328,825,084.00
  5. Step 5: Solve for x
    x = 12,328,825,084.00/118,999.12
  6. Step 6: Final answer
    x = 103,604.34

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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.