Home / 149,561.13-206,395.00-81,579.56

Finding the Fourth Proportional to 149,561.13, 206,395.00 and 81,579.56

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Solution

The fourth proportional to 149,561.13, 206,395.00 and 81,579.56 is: 112,580.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,561.13 : 206,395.00 = 81,579.56 : x
  2. Step 2: Convert to fraction form
    149,561.13/206,395.00 = 81,579.56/x
  3. Step 3: Cross multiply
    149,561.13x = 206,395.00 × 81,579.56
  4. Step 4: Simplify right side
    149,561.13x = 16,837,612,509.16
  5. Step 5: Solve for x
    x = 16,837,612,509.16/149,561.13
  6. Step 6: Final answer
    x = 112,580.13

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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.