Home / 101,021.22-139,410.27-55,700.85

Finding the Fourth Proportional to 101,021.22, 139,410.27 and 55,700.85

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Solution

The fourth proportional to 101,021.22, 139,410.27 and 55,700.85 is: 76,867.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,021.22 : 139,410.27 = 55,700.85 : x
  2. Step 2: Convert to fraction form
    101,021.22/139,410.27 = 55,700.85/x
  3. Step 3: Cross multiply
    101,021.22x = 139,410.27 × 55,700.85
  4. Step 4: Simplify right side
    101,021.22x = 7,765,270,537.73
  5. Step 5: Solve for x
    x = 7,765,270,537.73/101,021.22
  6. Step 6: Final answer
    x = 76,867.72

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1.5x scale

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.