Home / 136,294.90-188,049.21-81,832.93

Finding the Fourth Proportional to 136,294.90, 188,049.21 and 81,832.93

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Solution

The fourth proportional to 136,294.90, 188,049.21 and 81,832.93 is: 112,906.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,294.90 : 188,049.21 = 81,832.93 : x
  2. Step 2: Convert to fraction form
    136,294.90/188,049.21 = 81,832.93/x
  3. Step 3: Cross multiply
    136,294.90x = 188,049.21 × 81,832.93
  4. Step 4: Simplify right side
    136,294.90x = 15,388,617,838.49
  5. Step 5: Solve for x
    x = 15,388,617,838.49/136,294.90
  6. Step 6: Final answer
    x = 112,906.78

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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.