Home / 189,439.73-261,425.56-104,556.79

Finding the Fourth Proportional to 189,439.73, 261,425.56 and 104,556.79

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Solution

The fourth proportional to 189,439.73, 261,425.56 and 104,556.79 is: 144,287.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,439.73 : 261,425.56 = 104,556.79 : x
  2. Step 2: Convert to fraction form
    189,439.73/261,425.56 = 104,556.79/x
  3. Step 3: Cross multiply
    189,439.73x = 261,425.56 × 104,556.79
  4. Step 4: Simplify right side
    189,439.73x = 27,333,815,547.64
  5. Step 5: Solve for x
    x = 27,333,815,547.64/189,439.73
  6. Step 6: Final answer
    x = 144,287.66

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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.