Home / 141,876.19-195,790.65-78,216.26

Finding the Fourth Proportional to 141,876.19, 195,790.65 and 78,216.26

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Solution

The fourth proportional to 141,876.19, 195,790.65 and 78,216.26 is: 107,939.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,876.19 : 195,790.65 = 78,216.26 : x
  2. Step 2: Convert to fraction form
    141,876.19/195,790.65 = 78,216.26/x
  3. Step 3: Cross multiply
    141,876.19x = 195,790.65 × 78,216.26
  4. Step 4: Simplify right side
    141,876.19x = 15,314,012,385.97
  5. Step 5: Solve for x
    x = 15,314,012,385.97/141,876.19
  6. Step 6: Final answer
    x = 107,939.27

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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.