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Finding the Fourth Proportional to 154,751.97, 213,650.87 and 101,126.73

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Solution

The fourth proportional to 154,751.97, 213,650.87 and 101,126.73 is: 139,615.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,751.97 : 213,650.87 = 101,126.73 : x
  2. Step 2: Convert to fraction form
    154,751.97/213,650.87 = 101,126.73/x
  3. Step 3: Cross multiply
    154,751.97x = 213,650.87 × 101,126.73
  4. Step 4: Simplify right side
    154,751.97x = 21,605,813,339.12
  5. Step 5: Solve for x
    x = 21,605,813,339.12/154,751.97
  6. Step 6: Final answer
    x = 139,615.76

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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.