Home / 117,474.89-176,209.14-81,416.12

Finding the Fourth Proportional to 117,474.89, 176,209.14 and 81,416.12

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Solution

The fourth proportional to 117,474.89, 176,209.14 and 81,416.12 is: 122,121.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,474.89 : 176,209.14 = 81,416.12 : x
  2. Step 2: Convert to fraction form
    117,474.89/176,209.14 = 81,416.12/x
  3. Step 3: Cross multiply
    117,474.89x = 176,209.14 × 81,416.12
  4. Step 4: Simplify right side
    117,474.89x = 14,346,263,453.64
  5. Step 5: Solve for x
    x = 14,346,263,453.64/117,474.89
  6. Step 6: Final answer
    x = 122,121.96

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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.