Home / 208,540.20-287,785.86-113,046.60

Finding the Fourth Proportional to 208,540.20, 287,785.86 and 113,046.60

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Solution

The fourth proportional to 208,540.20, 287,785.86 and 113,046.60 is: 156,004.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,540.20 : 287,785.86 = 113,046.60 : x
  2. Step 2: Convert to fraction form
    208,540.20/287,785.86 = 113,046.60/x
  3. Step 3: Cross multiply
    208,540.20x = 287,785.86 × 113,046.60
  4. Step 4: Simplify right side
    208,540.20x = 32,533,213,001.08
  5. Step 5: Solve for x
    x = 32,533,213,001.08/208,540.20
  6. Step 6: Final answer
    x = 156,004.52

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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.