Home / 136,450.36-188,300.26-76,019.91

Finding the Fourth Proportional to 136,450.36, 188,300.26 and 76,019.91

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Solution

The fourth proportional to 136,450.36, 188,300.26 and 76,019.91 is: 104,906.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,450.36 : 188,300.26 = 76,019.91 : x
  2. Step 2: Convert to fraction form
    136,450.36/188,300.26 = 76,019.91/x
  3. Step 3: Cross multiply
    136,450.36x = 188,300.26 × 76,019.91
  4. Step 4: Simplify right side
    136,450.36x = 14,314,568,818.18
  5. Step 5: Solve for x
    x = 14,314,568,818.18/136,450.36
  6. Step 6: Final answer
    x = 104,906.79

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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.