Home / 208,538.20-287,783.10-113,044.60

Finding the Fourth Proportional to 208,538.20, 287,783.10 and 113,044.60

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Solution

The fourth proportional to 208,538.20, 287,783.10 and 113,044.60 is: 156,001.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,538.20 : 287,783.10 = 113,044.60 : x
  2. Step 2: Convert to fraction form
    208,538.20/287,783.10 = 113,044.60/x
  3. Step 3: Cross multiply
    208,538.20x = 287,783.10 × 113,044.60
  4. Step 4: Simplify right side
    208,538.20x = 32,532,325,426.26
  5. Step 5: Solve for x
    x = 32,532,325,426.26/208,538.20
  6. Step 6: Final answer
    x = 156,001.76

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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.