Home / 189,891.26-284,899.20-77,665.86

Finding the Fourth Proportional to 189,891.26, 284,899.20 and 77,665.86

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Solution

The fourth proportional to 189,891.26, 284,899.20 and 77,665.86 is: 116,524.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,891.26 : 284,899.20 = 77,665.86 : x
  2. Step 2: Convert to fraction form
    189,891.26/284,899.20 = 77,665.86/x
  3. Step 3: Cross multiply
    189,891.26x = 284,899.20 × 77,665.86
  4. Step 4: Simplify right side
    189,891.26x = 22,126,941,381.31
  5. Step 5: Solve for x
    x = 22,126,941,381.31/189,891.26
  6. Step 6: Final answer
    x = 116,524.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.