Home / 189,439.48-261,425.18-104,556.56

Finding the Fourth Proportional to 189,439.48, 261,425.18 and 104,556.56

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Solution

The fourth proportional to 189,439.48, 261,425.18 and 104,556.56 is: 144,287.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,439.48 : 261,425.18 = 104,556.56 : x
  2. Step 2: Convert to fraction form
    189,439.48/261,425.18 = 104,556.56/x
  3. Step 3: Cross multiply
    189,439.48x = 261,425.18 × 104,556.56
  4. Step 4: Simplify right side
    189,439.48x = 27,333,717,518.18
  5. Step 5: Solve for x
    x = 27,333,717,518.18/189,439.48
  6. Step 6: Final answer
    x = 144,287.33

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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.