Home / 117,470.12-162,103.22-63,754.67

Finding the Fourth Proportional to 117,470.12, 162,103.22 and 63,754.67

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Solution

The fourth proportional to 117,470.12, 162,103.22 and 63,754.67 is: 87,978.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,470.12 : 162,103.22 = 63,754.67 : x
  2. Step 2: Convert to fraction form
    117,470.12/162,103.22 = 63,754.67/x
  3. Step 3: Cross multiply
    117,470.12x = 162,103.22 × 63,754.67
  4. Step 4: Simplify right side
    117,470.12x = 10,334,836,167.75
  5. Step 5: Solve for x
    x = 10,334,836,167.75/117,470.12
  6. Step 6: Final answer
    x = 87,978.43

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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.