Home / 141,915.39-195,843.03-78,253.35

Finding the Fourth Proportional to 141,915.39, 195,843.03 and 78,253.35

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Solution

The fourth proportional to 141,915.39, 195,843.03 and 78,253.35 is: 107,989.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,915.39 : 195,843.03 = 78,253.35 : x
  2. Step 2: Convert to fraction form
    141,915.39/195,843.03 = 78,253.35/x
  3. Step 3: Cross multiply
    141,915.39x = 195,843.03 × 78,253.35
  4. Step 4: Simplify right side
    141,915.39x = 15,325,373,171.65
  5. Step 5: Solve for x
    x = 15,325,373,171.65/141,915.39
  6. Step 6: Final answer
    x = 107,989.51

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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.