Home / 141,314.85-195,012.27-77,651.28

Finding the Fourth Proportional to 141,314.85, 195,012.27 and 77,651.28

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Solution

The fourth proportional to 141,314.85, 195,012.27 and 77,651.28 is: 107,157.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,314.85 : 195,012.27 = 77,651.28 : x
  2. Step 2: Convert to fraction form
    141,314.85/195,012.27 = 77,651.28/x
  3. Step 3: Cross multiply
    141,314.85x = 195,012.27 × 77,651.28
  4. Step 4: Simplify right side
    141,314.85x = 15,142,951,406.14
  5. Step 5: Solve for x
    x = 15,142,951,406.14/141,314.85
  6. Step 6: Final answer
    x = 107,157.54

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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.