Home / 189,363.86-261,416.82-117,766.95

Finding the Fourth Proportional to 189,363.86, 261,416.82 and 117,766.95

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Solution

The fourth proportional to 189,363.86, 261,416.82 and 117,766.95 is: 162,577.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,363.86 : 261,416.82 = 117,766.95 : x
  2. Step 2: Convert to fraction form
    189,363.86/261,416.82 = 117,766.95/x
  3. Step 3: Cross multiply
    189,363.86x = 261,416.82 × 117,766.95
  4. Step 4: Simplify right side
    189,363.86x = 30,786,260,589.79
  5. Step 5: Solve for x
    x = 30,786,260,589.79/189,363.86
  6. Step 6: Final answer
    x = 162,577.28

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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.