Home / 149,857.12-206,817.13-81,884.43

Finding the Fourth Proportional to 149,857.12, 206,817.13 and 81,884.43

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Solution

The fourth proportional to 149,857.12, 206,817.13 and 81,884.43 is: 113,008.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,857.12 : 206,817.13 = 81,884.43 : x
  2. Step 2: Convert to fraction form
    149,857.12/206,817.13 = 81,884.43/x
  3. Step 3: Cross multiply
    149,857.12x = 206,817.13 × 81,884.43
  4. Step 4: Simplify right side
    149,857.12x = 16,935,102,804.29
  5. Step 5: Solve for x
    x = 16,935,102,804.29/149,857.12
  6. Step 6: Final answer
    x = 113,008.33

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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.