Home / 189,905.96-261,896.82-163,039.88

Finding the Fourth Proportional to 189,905.96, 261,896.82 and 163,039.88

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Solution

The fourth proportional to 189,905.96, 261,896.82 and 163,039.88 is: 224,846.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,905.96 : 261,896.82 = 163,039.88 : x
  2. Step 2: Convert to fraction form
    189,905.96/261,896.82 = 163,039.88/x
  3. Step 3: Cross multiply
    189,905.96x = 261,896.82 × 163,039.88
  4. Step 4: Simplify right side
    189,905.96x = 42,699,626,105.18
  5. Step 5: Solve for x
    x = 42,699,626,105.18/189,905.96
  6. Step 6: Final answer
    x = 224,846.16

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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.