Home / 189,380.31-261,345.72-104,497.39

Finding the Fourth Proportional to 189,380.31, 261,345.72 and 104,497.39

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Solution

The fourth proportional to 189,380.31, 261,345.72 and 104,497.39 is: 144,206.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,380.31 : 261,345.72 = 104,497.39 : x
  2. Step 2: Convert to fraction form
    189,380.31/261,345.72 = 104,497.39/x
  3. Step 3: Cross multiply
    189,380.31x = 261,345.72 × 104,497.39
  4. Step 4: Simplify right side
    189,380.31x = 27,309,945,627.67
  5. Step 5: Solve for x
    x = 27,309,945,627.67/189,380.31
  6. Step 6: Final answer
    x = 144,206.89

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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.