Home / 121,566.47-167,745.20-70,571.12

Finding the Fourth Proportional to 121,566.47, 167,745.20 and 70,571.12

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Solution

The fourth proportional to 121,566.47, 167,745.20 and 70,571.12 is: 97,378.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,566.47 : 167,745.20 = 70,571.12 : x
  2. Step 2: Convert to fraction form
    121,566.47/167,745.20 = 70,571.12/x
  3. Step 3: Cross multiply
    121,566.47x = 167,745.20 × 70,571.12
  4. Step 4: Simplify right side
    121,566.47x = 11,837,965,447.04
  5. Step 5: Solve for x
    x = 11,837,965,447.04/121,566.47
  6. Step 6: Final answer
    x = 97,378.54

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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.