Home / 141,863.19-195,772.71-78,203.26

Finding the Fourth Proportional to 141,863.19, 195,772.71 and 78,203.26

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Solution

The fourth proportional to 141,863.19, 195,772.71 and 78,203.26 is: 107,921.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,863.19 : 195,772.71 = 78,203.26 : x
  2. Step 2: Convert to fraction form
    141,863.19/195,772.71 = 78,203.26/x
  3. Step 3: Cross multiply
    141,863.19x = 195,772.71 × 78,203.26
  4. Step 4: Simplify right side
    141,863.19x = 15,310,064,141.03
  5. Step 5: Solve for x
    x = 15,310,064,141.03/141,863.19
  6. Step 6: Final answer
    x = 107,921.33

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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.