Home / 189,364.86-261,418.20-117,767.95

Finding the Fourth Proportional to 189,364.86, 261,418.20 and 117,767.95

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Solution

The fourth proportional to 189,364.86, 261,418.20 and 117,767.95 is: 162,578.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,364.86 : 261,418.20 = 117,767.95 : x
  2. Step 2: Convert to fraction form
    189,364.86/261,418.20 = 117,767.95/x
  3. Step 3: Cross multiply
    189,364.86x = 261,418.20 × 117,767.95
  4. Step 4: Simplify right side
    189,364.86x = 30,786,685,506.69
  5. Step 5: Solve for x
    x = 30,786,685,506.69/189,364.86
  6. Step 6: Final answer
    x = 162,578.66

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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.