Home / 141,529-195,308.14-77,865.44

Finding the Fourth Proportional to 141,529, 195,308.14 and 77,865.44

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Solution

The fourth proportional to 141,529, 195,308.14 and 77,865.44 is: 107,453.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,529 : 195,308.14 = 77,865.44 : x
  2. Step 2: Convert to fraction form
    141,529/195,308.14 = 77,865.44/x
  3. Step 3: Cross multiply
    141,529x = 195,308.14 × 77,865.44
  4. Step 4: Simplify right side
    141,529x = 15,207,754,256.68
  5. Step 5: Solve for x
    x = 15,207,754,256.68/141,529
  6. Step 6: Final answer
    x = 107,453.27

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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.