Home / 189,602.24-261,640.32-109,016.96

Finding the Fourth Proportional to 189,602.24, 261,640.32 and 109,016.96

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Solution

The fourth proportional to 189,602.24, 261,640.32 and 109,016.96 is: 150,437.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,602.24 : 261,640.32 = 109,016.96 : x
  2. Step 2: Convert to fraction form
    189,602.24/261,640.32 = 109,016.96/x
  3. Step 3: Cross multiply
    189,602.24x = 261,640.32 × 109,016.96
  4. Step 4: Simplify right side
    189,602.24x = 28,523,232,299.83
  5. Step 5: Solve for x
    x = 28,523,232,299.83/189,602.24
  6. Step 6: Final answer
    x = 150,437.21

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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.