Home / 149,561.85-206,396.00-81,580.29

Finding the Fourth Proportional to 149,561.85, 206,396.00 and 81,580.29

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Solution

The fourth proportional to 149,561.85, 206,396.00 and 81,580.29 is: 112,581.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,561.85 : 206,396.00 = 81,580.29 : x
  2. Step 2: Convert to fraction form
    149,561.85/206,396.00 = 81,580.29/x
  3. Step 3: Cross multiply
    149,561.85x = 206,396.00 × 81,580.29
  4. Step 4: Simplify right side
    149,561.85x = 16,837,844,658.88
  5. Step 5: Solve for x
    x = 16,837,844,658.88/149,561.85
  6. Step 6: Final answer
    x = 112,581.15

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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.