Home / 113,738.40-170,642.22-53,812.89

Finding the Fourth Proportional to 113,738.40, 170,642.22 and 53,812.89

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Solution

The fourth proportional to 113,738.40, 170,642.22 and 53,812.89 is: 80,735.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,738.40 : 170,642.22 = 53,812.89 : x
  2. Step 2: Convert to fraction form
    113,738.40/170,642.22 = 53,812.89/x
  3. Step 3: Cross multiply
    113,738.40x = 170,642.22 × 53,812.89
  4. Step 4: Simplify right side
    113,738.40x = 9,182,751,014.22
  5. Step 5: Solve for x
    x = 9,182,751,014.22/113,738.40
  6. Step 6: Final answer
    x = 80,735.71

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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.