Home / 209,473.97-289,077.53-113,981.15

Finding the Fourth Proportional to 209,473.97, 289,077.53 and 113,981.15

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Solution

The fourth proportional to 209,473.97, 289,077.53 and 113,981.15 is: 157,295.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,473.97 : 289,077.53 = 113,981.15 : x
  2. Step 2: Convert to fraction form
    209,473.97/289,077.53 = 113,981.15/x
  3. Step 3: Cross multiply
    209,473.97x = 289,077.53 × 113,981.15
  4. Step 4: Simplify right side
    209,473.97x = 32,949,388,148.12
  5. Step 5: Solve for x
    x = 32,949,388,148.12/209,473.97
  6. Step 6: Final answer
    x = 157,295.86

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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.