Home / 189,706.26-261,791.46-103,663.35

Finding the Fourth Proportional to 189,706.26, 261,791.46 and 103,663.35

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Solution

The fourth proportional to 189,706.26, 261,791.46 and 103,663.35 is: 143,053.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,706.26 : 261,791.46 = 103,663.35 : x
  2. Step 2: Convert to fraction form
    189,706.26/261,791.46 = 103,663.35/x
  3. Step 3: Cross multiply
    189,706.26x = 261,791.46 × 103,663.35
  4. Step 4: Simplify right side
    189,706.26x = 27,138,179,744.99
  5. Step 5: Solve for x
    x = 27,138,179,744.99/189,706.26
  6. Step 6: Final answer
    x = 143,053.69

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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.