Home / 189,818.40-261,975.60-109,244.40

Finding the Fourth Proportional to 189,818.40, 261,975.60 and 109,244.40

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Solution

The fourth proportional to 189,818.40, 261,975.60 and 109,244.40 is: 150,772.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,818.40 : 261,975.60 = 109,244.40 : x
  2. Step 2: Convert to fraction form
    189,818.40/261,975.60 = 109,244.40/x
  3. Step 3: Cross multiply
    189,818.40x = 261,975.60 × 109,244.40
  4. Step 4: Simplify right side
    189,818.40x = 28,619,367,236.64
  5. Step 5: Solve for x
    x = 28,619,367,236.64/189,818.40
  6. Step 6: Final answer
    x = 150,772.36

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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.