Home / 205,013.04-307,521.56-71,896.56

Finding the Fourth Proportional to 205,013.04, 307,521.56 and 71,896.56

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Solution

The fourth proportional to 205,013.04, 307,521.56 and 71,896.56 is: 107,845.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,013.04 : 307,521.56 = 71,896.56 : x
  2. Step 2: Convert to fraction form
    205,013.04/307,521.56 = 71,896.56/x
  3. Step 3: Cross multiply
    205,013.04x = 307,521.56 × 71,896.56
  4. Step 4: Simplify right side
    205,013.04x = 22,109,742,289.83
  5. Step 5: Solve for x
    x = 22,109,742,289.83/205,013.04
  6. Step 6: Final answer
    x = 107,845.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.