Home / 188,422.12-260,023.98-103,540.60

Finding the Fourth Proportional to 188,422.12, 260,023.98 and 103,540.60

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Solution

The fourth proportional to 188,422.12, 260,023.98 and 103,540.60 is: 142,886.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,422.12 : 260,023.98 = 103,540.60 : x
  2. Step 2: Convert to fraction form
    188,422.12/260,023.98 = 103,540.60/x
  3. Step 3: Cross multiply
    188,422.12x = 260,023.98 × 103,540.60
  4. Step 4: Simplify right side
    188,422.12x = 26,923,038,903.59
  5. Step 5: Solve for x
    x = 26,923,038,903.59/188,422.12
  6. Step 6: Final answer
    x = 142,886.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.