Home / 141,434.05-195,178.99-77,771.85

Finding the Fourth Proportional to 141,434.05, 195,178.99 and 77,771.85

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Solution

The fourth proportional to 141,434.05, 195,178.99 and 77,771.85 is: 107,325.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,434.05 : 195,178.99 = 77,771.85 : x
  2. Step 2: Convert to fraction form
    141,434.05/195,178.99 = 77,771.85/x
  3. Step 3: Cross multiply
    141,434.05x = 195,178.99 × 77,771.85
  4. Step 4: Simplify right side
    141,434.05x = 15,179,430,352.90
  5. Step 5: Solve for x
    x = 15,179,430,352.90/141,434.05
  6. Step 6: Final answer
    x = 107,325.15

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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.