Home / 208,811.25-288,159.73-113,317.97

Finding the Fourth Proportional to 208,811.25, 288,159.73 and 113,317.97

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Solution

The fourth proportional to 208,811.25, 288,159.73 and 113,317.97 is: 156,378.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,811.25 : 288,159.73 = 113,317.97 : x
  2. Step 2: Convert to fraction form
    208,811.25/288,159.73 = 113,317.97/x
  3. Step 3: Cross multiply
    208,811.25x = 288,159.73 × 113,317.97
  4. Step 4: Simplify right side
    208,811.25x = 32,653,673,915.25
  5. Step 5: Solve for x
    x = 32,653,673,915.25/208,811.25
  6. Step 6: Final answer
    x = 156,378.90

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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.