Home / 192,722.09-289,083.13-66,365.43

Finding the Fourth Proportional to 192,722.09, 289,083.13 and 66,365.43

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Solution

The fourth proportional to 192,722.09, 289,083.13 and 66,365.43 is: 99,548.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,722.09 : 289,083.13 = 66,365.43 : x
  2. Step 2: Convert to fraction form
    192,722.09/289,083.13 = 66,365.43/x
  3. Step 3: Cross multiply
    192,722.09x = 289,083.13 × 66,365.43
  4. Step 4: Simplify right side
    192,722.09x = 19,185,124,978.22
  5. Step 5: Solve for x
    x = 19,185,124,978.22/192,722.09
  6. Step 6: Final answer
    x = 99,548.14

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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.