Home / 141,813.62-195,702.78-78,151.41

Finding the Fourth Proportional to 141,813.62, 195,702.78 and 78,151.41

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Solution

The fourth proportional to 141,813.62, 195,702.78 and 78,151.41 is: 107,848.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,813.62 : 195,702.78 = 78,151.41 : x
  2. Step 2: Convert to fraction form
    141,813.62/195,702.78 = 78,151.41/x
  3. Step 3: Cross multiply
    141,813.62x = 195,702.78 × 78,151.41
  4. Step 4: Simplify right side
    141,813.62x = 15,294,448,197.92
  5. Step 5: Solve for x
    x = 15,294,448,197.92/141,813.62
  6. Step 6: Final answer
    x = 107,848.94

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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.