Home / 141,515.56-195,289.94-77,853.40

Finding the Fourth Proportional to 141,515.56, 195,289.94 and 77,853.40

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Solution

The fourth proportional to 141,515.56, 195,289.94 and 77,853.40 is: 107,436.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,515.56 : 195,289.94 = 77,853.40 : x
  2. Step 2: Convert to fraction form
    141,515.56/195,289.94 = 77,853.40/x
  3. Step 3: Cross multiply
    141,515.56x = 195,289.94 × 77,853.40
  4. Step 4: Simplify right side
    141,515.56x = 15,203,985,814.80
  5. Step 5: Solve for x
    x = 15,203,985,814.80/141,515.56
  6. Step 6: Final answer
    x = 107,436.85

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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.