Home / 111,977.10-154,560.15-73,764.54

Finding the Fourth Proportional to 111,977.10, 154,560.15 and 73,764.54

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Solution

The fourth proportional to 111,977.10, 154,560.15 and 73,764.54 is: 101,815.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,977.10 : 154,560.15 = 73,764.54 : x
  2. Step 2: Convert to fraction form
    111,977.10/154,560.15 = 73,764.54/x
  3. Step 3: Cross multiply
    111,977.10x = 154,560.15 × 73,764.54
  4. Step 4: Simplify right side
    111,977.10x = 11,401,058,367.08
  5. Step 5: Solve for x
    x = 11,401,058,367.08/111,977.10
  6. Step 6: Final answer
    x = 101,815.98

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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.