Home / 189,807.22-261,974.01-157,945.06

Finding the Fourth Proportional to 189,807.22, 261,974.01 and 157,945.06

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Solution

The fourth proportional to 189,807.22, 261,974.01 and 157,945.06 is: 217,997.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,807.22 : 261,974.01 = 157,945.06 : x
  2. Step 2: Convert to fraction form
    189,807.22/261,974.01 = 157,945.06/x
  3. Step 3: Cross multiply
    189,807.22x = 261,974.01 × 157,945.06
  4. Step 4: Simplify right side
    189,807.22x = 41,377,500,727.89
  5. Step 5: Solve for x
    x = 41,377,500,727.89/189,807.22
  6. Step 6: Final answer
    x = 217,997.51

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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.