Home / 149,410.14-206,186.03-81,427.17

Finding the Fourth Proportional to 149,410.14, 206,186.03 and 81,427.17

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Solution

The fourth proportional to 149,410.14, 206,186.03 and 81,427.17 is: 112,369.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,410.14 : 206,186.03 = 81,427.17 : x
  2. Step 2: Convert to fraction form
    149,410.14/206,186.03 = 81,427.17/x
  3. Step 3: Cross multiply
    149,410.14x = 206,186.03 × 81,427.17
  4. Step 4: Simplify right side
    149,410.14x = 16,789,144,509.30
  5. Step 5: Solve for x
    x = 16,789,144,509.30/149,410.14
  6. Step 6: Final answer
    x = 112,369.51

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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.