Home / 189,170.72-261,057.34-104,290.82

Finding the Fourth Proportional to 189,170.72, 261,057.34 and 104,290.82

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Solution

The fourth proportional to 189,170.72, 261,057.34 and 104,290.82 is: 143,922.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,170.72 : 261,057.34 = 104,290.82 : x
  2. Step 2: Convert to fraction form
    189,170.72/261,057.34 = 104,290.82/x
  3. Step 3: Cross multiply
    189,170.72x = 261,057.34 × 104,290.82
  4. Step 4: Simplify right side
    189,170.72x = 27,225,884,055.62
  5. Step 5: Solve for x
    x = 27,225,884,055.62/189,170.72
  6. Step 6: Final answer
    x = 143,922.29

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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.