Home / 141,314.35-195,011.58-77,650.78

Finding the Fourth Proportional to 141,314.35, 195,011.58 and 77,650.78

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Solution

The fourth proportional to 141,314.35, 195,011.58 and 77,650.78 is: 107,156.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,314.35 : 195,011.58 = 77,650.78 : x
  2. Step 2: Convert to fraction form
    141,314.35/195,011.58 = 77,650.78/x
  3. Step 3: Cross multiply
    141,314.35x = 195,011.58 × 77,650.78
  4. Step 4: Simplify right side
    141,314.35x = 15,142,801,296.03
  5. Step 5: Solve for x
    x = 15,142,801,296.03/141,314.35
  6. Step 6: Final answer
    x = 107,156.85

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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.