Home / 141,915.58-195,828.51-78,249.58

Finding the Fourth Proportional to 141,915.58, 195,828.51 and 78,249.58

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Solution

The fourth proportional to 141,915.58, 195,828.51 and 78,249.58 is: 107,976.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,915.58 : 195,828.51 = 78,249.58 : x
  2. Step 2: Convert to fraction form
    141,915.58/195,828.51 = 78,249.58/x
  3. Step 3: Cross multiply
    141,915.58x = 195,828.51 × 78,249.58
  4. Step 4: Simplify right side
    141,915.58x = 15,323,498,659.53
  5. Step 5: Solve for x
    x = 15,323,498,659.53/141,915.58
  6. Step 6: Final answer
    x = 107,976.15

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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.