Home / 189,664.67-261,796.12-117,090.43

Finding the Fourth Proportional to 189,664.67, 261,796.12 and 117,090.43

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Solution

The fourth proportional to 189,664.67, 261,796.12 and 117,090.43 is: 161,621.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,664.67 : 261,796.12 = 117,090.43 : x
  2. Step 2: Convert to fraction form
    189,664.67/261,796.12 = 117,090.43/x
  3. Step 3: Cross multiply
    189,664.67x = 261,796.12 × 117,090.43
  4. Step 4: Simplify right side
    189,664.67x = 30,653,819,315.92
  5. Step 5: Solve for x
    x = 30,653,819,315.92/189,664.67
  6. Step 6: Final answer
    x = 161,621.13

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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.