Home / 205,431.10-283,489.56-114,787.78

Finding the Fourth Proportional to 205,431.10, 283,489.56 and 114,787.78

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Solution

The fourth proportional to 205,431.10, 283,489.56 and 114,787.78 is: 158,404.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,431.10 : 283,489.56 = 114,787.78 : x
  2. Step 2: Convert to fraction form
    205,431.10/283,489.56 = 114,787.78/x
  3. Step 3: Cross multiply
    205,431.10x = 283,489.56 × 114,787.78
  4. Step 4: Simplify right side
    205,431.10x = 32,541,137,245.58
  5. Step 5: Solve for x
    x = 32,541,137,245.58/205,431.10
  6. Step 6: Final answer
    x = 158,404.14

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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.