Home / 189,816.49-261,939.45-113,348.44

Finding the Fourth Proportional to 189,816.49, 261,939.45 and 113,348.44

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Solution

The fourth proportional to 189,816.49, 261,939.45 and 113,348.44 is: 156,416.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,816.49 : 261,939.45 = 113,348.44 : x
  2. Step 2: Convert to fraction form
    189,816.49/261,939.45 = 113,348.44/x
  3. Step 3: Cross multiply
    189,816.49x = 261,939.45 × 113,348.44
  4. Step 4: Simplify right side
    189,816.49x = 29,690,428,031.96
  5. Step 5: Solve for x
    x = 29,690,428,031.96/189,816.49
  6. Step 6: Final answer
    x = 156,416.48

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1.5x scale

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.