Home / 111,620.96-154,077.36-73,907.36

Finding the Fourth Proportional to 111,620.96, 154,077.36 and 73,907.36

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Solution

The fourth proportional to 111,620.96, 154,077.36 and 73,907.36 is: 102,018.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,620.96 : 154,077.36 = 73,907.36 : x
  2. Step 2: Convert to fraction form
    111,620.96/154,077.36 = 73,907.36/x
  3. Step 3: Cross multiply
    111,620.96x = 154,077.36 × 73,907.36
  4. Step 4: Simplify right side
    111,620.96x = 11,387,450,913.37
  5. Step 5: Solve for x
    x = 11,387,450,913.37/111,620.96
  6. Step 6: Final answer
    x = 102,018.93

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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.