Home / 209,519.25-289,131.02-114,023.90

Finding the Fourth Proportional to 209,519.25, 289,131.02 and 114,023.90

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Solution

The fourth proportional to 209,519.25, 289,131.02 and 114,023.90 is: 157,349.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,519.25 : 289,131.02 = 114,023.90 : x
  2. Step 2: Convert to fraction form
    209,519.25/289,131.02 = 114,023.90/x
  3. Step 3: Cross multiply
    209,519.25x = 289,131.02 × 114,023.90
  4. Step 4: Simplify right side
    209,519.25x = 32,967,846,511.38
  5. Step 5: Solve for x
    x = 32,967,846,511.38/209,519.25
  6. Step 6: Final answer
    x = 157,349.96

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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.