Home / 149,661.96-206,527.05-81,677.22

Finding the Fourth Proportional to 149,661.96, 206,527.05 and 81,677.22

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Solution

The fourth proportional to 149,661.96, 206,527.05 and 81,677.22 is: 112,711.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,661.96 : 206,527.05 = 81,677.22 : x
  2. Step 2: Convert to fraction form
    149,661.96/206,527.05 = 81,677.22/x
  3. Step 3: Cross multiply
    149,661.96x = 206,527.05 × 81,677.22
  4. Step 4: Simplify right side
    149,661.96x = 16,868,555,298.80
  5. Step 5: Solve for x
    x = 16,868,555,298.80/149,661.96
  6. Step 6: Final answer
    x = 112,711.04

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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.