Home / 203,711.86-281,109.08-113,063.45

Finding the Fourth Proportional to 203,711.86, 281,109.08 and 113,063.45

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Solution

The fourth proportional to 203,711.86, 281,109.08 and 113,063.45 is: 156,020.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,711.86 : 281,109.08 = 113,063.45 : x
  2. Step 2: Convert to fraction form
    203,711.86/281,109.08 = 113,063.45/x
  3. Step 3: Cross multiply
    203,711.86x = 281,109.08 × 113,063.45
  4. Step 4: Simplify right side
    203,711.86x = 31,783,161,288.24
  5. Step 5: Solve for x
    x = 31,783,161,288.24/203,711.86
  6. Step 6: Final answer
    x = 156,020.18

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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.