Home / 189,782.20-284,675.19-77,432.41

Finding the Fourth Proportional to 189,782.20, 284,675.19 and 77,432.41

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Solution

The fourth proportional to 189,782.20, 284,675.19 and 77,432.41 is: 116,149.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,782.20 : 284,675.19 = 77,432.41 : x
  2. Step 2: Convert to fraction form
    189,782.20/284,675.19 = 77,432.41/x
  3. Step 3: Cross multiply
    189,782.20x = 284,675.19 × 77,432.41
  4. Step 4: Simplify right side
    189,782.20x = 22,043,086,028.91
  5. Step 5: Solve for x
    x = 22,043,086,028.91/189,782.20
  6. Step 6: Final answer
    x = 116,149.39

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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.