Home / 149,745.04-206,656.53-81,768.34

Finding the Fourth Proportional to 149,745.04, 206,656.53 and 81,768.34

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Solution

The fourth proportional to 149,745.04, 206,656.53 and 81,768.34 is: 112,844.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,745.04 : 206,656.53 = 81,768.34 : x
  2. Step 2: Convert to fraction form
    149,745.04/206,656.53 = 81,768.34/x
  3. Step 3: Cross multiply
    149,745.04x = 206,656.53 × 81,768.34
  4. Step 4: Simplify right side
    149,745.04x = 16,897,960,891.62
  5. Step 5: Solve for x
    x = 16,897,960,891.62/149,745.04
  6. Step 6: Final answer
    x = 112,844.88

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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.