Home / 209,725.20-289,422.18-114,231.06

Finding the Fourth Proportional to 209,725.20, 289,422.18 and 114,231.06

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Solution

The fourth proportional to 209,725.20, 289,422.18 and 114,231.06 is: 157,639.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,725.20 : 289,422.18 = 114,231.06 : x
  2. Step 2: Convert to fraction form
    209,725.20/289,422.18 = 114,231.06/x
  3. Step 3: Cross multiply
    209,725.20x = 289,422.18 × 114,231.06
  4. Step 4: Simplify right side
    209,725.20x = 33,061,002,408.91
  5. Step 5: Solve for x
    x = 33,061,002,408.91/209,725.20
  6. Step 6: Final answer
    x = 157,639.63

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1.5x scale

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.