Home / 236,100.90-354,186.18-86,306.16

Finding the Fourth Proportional to 236,100.90, 354,186.18 and 86,306.16

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Solution

The fourth proportional to 236,100.90, 354,186.18 and 86,306.16 is: 129,471.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,100.90 : 354,186.18 = 86,306.16 : x
  2. Step 2: Convert to fraction form
    236,100.90/354,186.18 = 86,306.16/x
  3. Step 3: Cross multiply
    236,100.90x = 354,186.18 × 86,306.16
  4. Step 4: Simplify right side
    236,100.90x = 30,568,449,120.87
  5. Step 5: Solve for x
    x = 30,568,449,120.87/236,100.90
  6. Step 6: Final answer
    x = 129,471.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.