Home / 189,806.22-261,972.63-157,944.06

Finding the Fourth Proportional to 189,806.22, 261,972.63 and 157,944.06

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Solution

The fourth proportional to 189,806.22, 261,972.63 and 157,944.06 is: 217,996.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,806.22 : 261,972.63 = 157,944.06 : x
  2. Step 2: Convert to fraction form
    189,806.22/261,972.63 = 157,944.06/x
  3. Step 3: Cross multiply
    189,806.22x = 261,972.63 × 157,944.06
  4. Step 4: Simplify right side
    189,806.22x = 41,377,020,791.08
  5. Step 5: Solve for x
    x = 41,377,020,791.08/189,806.22
  6. Step 6: Final answer
    x = 217,996.13

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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.