Home / 149,893.14-206,864.33-85,365.11

Finding the Fourth Proportional to 149,893.14, 206,864.33 and 85,365.11

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Solution

The fourth proportional to 149,893.14, 206,864.33 and 85,365.11 is: 117,810.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,893.14 : 206,864.33 = 85,365.11 : x
  2. Step 2: Convert to fraction form
    149,893.14/206,864.33 = 85,365.11/x
  3. Step 3: Cross multiply
    149,893.14x = 206,864.33 × 85,365.11
  4. Step 4: Simplify right side
    149,893.14x = 17,658,994,824.38
  5. Step 5: Solve for x
    x = 17,658,994,824.38/149,893.14
  6. Step 6: Final answer
    x = 117,810.56

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1.5x scale

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.