Home / 209,181.25-288,670.16-113,687.95

Finding the Fourth Proportional to 209,181.25, 288,670.16 and 113,687.95

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Solution

The fourth proportional to 209,181.25, 288,670.16 and 113,687.95 is: 156,889.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,181.25 : 288,670.16 = 113,687.95 : x
  2. Step 2: Convert to fraction form
    209,181.25/288,670.16 = 113,687.95/x
  3. Step 3: Cross multiply
    209,181.25x = 288,670.16 × 113,687.95
  4. Step 4: Simplify right side
    209,181.25x = 32,818,318,377.59
  5. Step 5: Solve for x
    x = 32,818,318,377.59/209,181.25
  6. Step 6: Final answer
    x = 156,889.39

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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.