Home / 189,137.44-261,021.81-104,262.40

Finding the Fourth Proportional to 189,137.44, 261,021.81 and 104,262.40

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Solution

The fourth proportional to 189,137.44, 261,021.81 and 104,262.40 is: 143,888.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,137.44 : 261,021.81 = 104,262.40 : x
  2. Step 2: Convert to fraction form
    189,137.44/261,021.81 = 104,262.40/x
  3. Step 3: Cross multiply
    189,137.44x = 261,021.81 × 104,262.40
  4. Step 4: Simplify right side
    189,137.44x = 27,214,760,362.94
  5. Step 5: Solve for x
    x = 27,214,760,362.94/189,137.44
  6. Step 6: Final answer
    x = 143,888.81

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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.