Home / 149,561.41-206,395.39-81,579.84

Finding the Fourth Proportional to 149,561.41, 206,395.39 and 81,579.84

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Solution

The fourth proportional to 149,561.41, 206,395.39 and 81,579.84 is: 112,580.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,561.41 : 206,395.39 = 81,579.84 : x
  2. Step 2: Convert to fraction form
    149,561.41/206,395.39 = 81,579.84/x
  3. Step 3: Cross multiply
    149,561.41x = 206,395.39 × 81,579.84
  4. Step 4: Simplify right side
    149,561.41x = 16,837,703,381.90
  5. Step 5: Solve for x
    x = 16,837,703,381.90/149,561.41
  6. Step 6: Final answer
    x = 112,580.53

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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.