Home / 189,314.62-261,255.07-104,431.68

Finding the Fourth Proportional to 189,314.62, 261,255.07 and 104,431.68

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Solution

The fourth proportional to 189,314.62, 261,255.07 and 104,431.68 is: 144,116.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,314.62 : 261,255.07 = 104,431.68 : x
  2. Step 2: Convert to fraction form
    189,314.62/261,255.07 = 104,431.68/x
  3. Step 3: Cross multiply
    189,314.62x = 261,255.07 × 104,431.68
  4. Step 4: Simplify right side
    189,314.62x = 27,283,305,999.16
  5. Step 5: Solve for x
    x = 27,283,305,999.16/189,314.62
  6. Step 6: Final answer
    x = 144,116.21

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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.