Home / 141,389.83-195,121.70-76,863.41

Finding the Fourth Proportional to 141,389.83, 195,121.70 and 76,863.41

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Solution

The fourth proportional to 141,389.83, 195,121.70 and 76,863.41 is: 106,073.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,389.83 : 195,121.70 = 76,863.41 : x
  2. Step 2: Convert to fraction form
    141,389.83/195,121.70 = 76,863.41/x
  3. Step 3: Cross multiply
    141,389.83x = 195,121.70 × 76,863.41
  4. Step 4: Simplify right side
    141,389.83x = 14,997,719,227.00
  5. Step 5: Solve for x
    x = 14,997,719,227.00/141,389.83
  6. Step 6: Final answer
    x = 106,073.54

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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.