Home / 209,581.56-289,215.18-114,086.21

Finding the Fourth Proportional to 209,581.56, 289,215.18 and 114,086.21

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Solution

The fourth proportional to 209,581.56, 289,215.18 and 114,086.21 is: 157,434.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,581.56 : 289,215.18 = 114,086.21 : x
  2. Step 2: Convert to fraction form
    209,581.56/289,215.18 = 114,086.21/x
  3. Step 3: Cross multiply
    209,581.56x = 289,215.18 × 114,086.21
  4. Step 4: Simplify right side
    209,581.56x = 32,995,462,314.59
  5. Step 5: Solve for x
    x = 32,995,462,314.59/209,581.56
  6. Step 6: Final answer
    x = 157,434.95

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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.