Home / 192,756.12-289,203.34-86,131.16

Finding the Fourth Proportional to 192,756.12, 289,203.34 and 86,131.16

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Solution

The fourth proportional to 192,756.12, 289,203.34 and 86,131.16 is: 129,227.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,756.12 : 289,203.34 = 86,131.16 : x
  2. Step 2: Convert to fraction form
    192,756.12/289,203.34 = 86,131.16/x
  3. Step 3: Cross multiply
    192,756.12x = 289,203.34 × 86,131.16
  4. Step 4: Simplify right side
    192,756.12x = 24,909,419,150.07
  5. Step 5: Solve for x
    x = 24,909,419,150.07/192,756.12
  6. Step 6: Final answer
    x = 129,227.64

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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.