Home / 208,581.18-287,839.35-113,087.58

Finding the Fourth Proportional to 208,581.18, 287,839.35 and 113,087.58

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Solution

The fourth proportional to 208,581.18, 287,839.35 and 113,087.58 is: 156,059.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,581.18 : 287,839.35 = 113,087.58 : x
  2. Step 2: Convert to fraction form
    208,581.18/287,839.35 = 113,087.58/x
  3. Step 3: Cross multiply
    208,581.18x = 287,839.35 × 113,087.58
  4. Step 4: Simplify right side
    208,581.18x = 32,551,055,520.27
  5. Step 5: Solve for x
    x = 32,551,055,520.27/208,581.18
  6. Step 6: Final answer
    x = 156,059.41

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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.