Home / 149,306.31-206,047.43-81,325.33

Finding the Fourth Proportional to 149,306.31, 206,047.43 and 81,325.33

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Solution

The fourth proportional to 149,306.31, 206,047.43 and 81,325.33 is: 112,231.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,306.31 : 206,047.43 = 81,325.33 : x
  2. Step 2: Convert to fraction form
    149,306.31/206,047.43 = 81,325.33/x
  3. Step 3: Cross multiply
    149,306.31x = 206,047.43 × 81,325.33
  4. Step 4: Simplify right side
    149,306.31x = 16,756,875,240.40
  5. Step 5: Solve for x
    x = 16,756,875,240.40/149,306.31
  6. Step 6: Final answer
    x = 112,231.53

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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.