Home / 104,079.45-143,632.26-63,815.41

Finding the Fourth Proportional to 104,079.45, 143,632.26 and 63,815.41

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Solution

The fourth proportional to 104,079.45, 143,632.26 and 63,815.41 is: 88,066.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,079.45 : 143,632.26 = 63,815.41 : x
  2. Step 2: Convert to fraction form
    104,079.45/143,632.26 = 63,815.41/x
  3. Step 3: Cross multiply
    104,079.45x = 143,632.26 × 63,815.41
  4. Step 4: Simplify right side
    104,079.45x = 9,165,951,740.67
  5. Step 5: Solve for x
    x = 9,165,951,740.67/104,079.45
  6. Step 6: Final answer
    x = 88,066.87

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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.