Home / 111,878.10-154,313.19-73,625.46

Finding the Fourth Proportional to 111,878.10, 154,313.19 and 73,625.46

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Solution

The fourth proportional to 111,878.10, 154,313.19 and 73,625.46 is: 101,551.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,878.10 : 154,313.19 = 73,625.46 : x
  2. Step 2: Convert to fraction form
    111,878.10/154,313.19 = 73,625.46/x
  3. Step 3: Cross multiply
    111,878.10x = 154,313.19 × 73,625.46
  4. Step 4: Simplify right side
    111,878.10x = 11,361,379,597.82
  5. Step 5: Solve for x
    x = 11,361,379,597.82/111,878.10
  6. Step 6: Final answer
    x = 101,551.42

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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.