Home / 189,895.48-261,976.62-109,303.72

Finding the Fourth Proportional to 189,895.48, 261,976.62 and 109,303.72

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Solution

The fourth proportional to 189,895.48, 261,976.62 and 109,303.72 is: 150,793.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,895.48 : 261,976.62 = 109,303.72 : x
  2. Step 2: Convert to fraction form
    189,895.48/261,976.62 = 109,303.72/x
  3. Step 3: Cross multiply
    189,895.48x = 261,976.62 × 109,303.72
  4. Step 4: Simplify right side
    189,895.48x = 28,635,019,119.03
  5. Step 5: Solve for x
    x = 28,635,019,119.03/189,895.48
  6. Step 6: Final answer
    x = 150,793.58

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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.