Home / 113,163.91-156,101.22-70,648.63

Finding the Fourth Proportional to 113,163.91, 156,101.22 and 70,648.63

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Solution

The fourth proportional to 113,163.91, 156,101.22 and 70,648.63 is: 97,454.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,163.91 : 156,101.22 = 70,648.63 : x
  2. Step 2: Convert to fraction form
    113,163.91/156,101.22 = 70,648.63/x
  3. Step 3: Cross multiply
    113,163.91x = 156,101.22 × 70,648.63
  4. Step 4: Simplify right side
    113,163.91x = 11,028,337,334.33
  5. Step 5: Solve for x
    x = 11,028,337,334.33/113,163.91
  6. Step 6: Final answer
    x = 97,454.54

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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.