Home / 203,957.91-281,235.03-139,437.69

Finding the Fourth Proportional to 203,957.91, 281,235.03 and 139,437.69

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Solution

The fourth proportional to 203,957.91, 281,235.03 and 139,437.69 is: 192,268.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,957.91 : 281,235.03 = 139,437.69 : x
  2. Step 2: Convert to fraction form
    203,957.91/281,235.03 = 139,437.69/x
  3. Step 3: Cross multiply
    203,957.91x = 281,235.03 × 139,437.69
  4. Step 4: Simplify right side
    203,957.91x = 39,214,762,930.28
  5. Step 5: Solve for x
    x = 39,214,762,930.28/203,957.91
  6. Step 6: Final answer
    x = 192,268.90

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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.