Home / 189,170.47-261,057.06-104,290.57

Finding the Fourth Proportional to 189,170.47, 261,057.06 and 104,290.57

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Solution

The fourth proportional to 189,170.47, 261,057.06 and 104,290.57 is: 143,921.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,170.47 : 261,057.06 = 104,290.57 : x
  2. Step 2: Convert to fraction form
    189,170.47/261,057.06 = 104,290.57/x
  3. Step 3: Cross multiply
    189,170.47x = 261,057.06 × 104,290.57
  4. Step 4: Simplify right side
    189,170.47x = 27,225,789,589.92
  5. Step 5: Solve for x
    x = 27,225,789,589.92/189,170.47
  6. Step 6: Final answer
    x = 143,921.99

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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.