Home / 205,701.92-283,787.52-129,176

Finding the Fourth Proportional to 205,701.92, 283,787.52 and 129,176

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Solution

The fourth proportional to 205,701.92, 283,787.52 and 129,176 is: 178,211.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,701.92 : 283,787.52 = 129,176 : x
  2. Step 2: Convert to fraction form
    205,701.92/283,787.52 = 129,176/x
  3. Step 3: Cross multiply
    205,701.92x = 283,787.52 × 129,176
  4. Step 4: Simplify right side
    205,701.92x = 36,658,536,683.52
  5. Step 5: Solve for x
    x = 36,658,536,683.52/205,701.92
  6. Step 6: Final answer
    x = 178,211.93

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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.