Home / 189,366.32-261,420.22-117,769.41

Finding the Fourth Proportional to 189,366.32, 261,420.22 and 117,769.41

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Solution

The fourth proportional to 189,366.32, 261,420.22 and 117,769.41 is: 162,580.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,366.32 : 261,420.22 = 117,769.41 : x
  2. Step 2: Convert to fraction form
    189,366.32/261,420.22 = 117,769.41/x
  3. Step 3: Cross multiply
    189,366.32x = 261,420.22 × 117,769.41
  4. Step 4: Simplify right side
    189,366.32x = 30,787,305,071.47
  5. Step 5: Solve for x
    x = 30,787,305,071.47/189,366.32
  6. Step 6: Final answer
    x = 162,580.68

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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.