Home / 189,669.87-261,747.18-104,788.89

Finding the Fourth Proportional to 189,669.87, 261,747.18 and 104,788.89

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Solution

The fourth proportional to 189,669.87, 261,747.18 and 104,788.89 is: 144,610.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,669.87 : 261,747.18 = 104,788.89 : x
  2. Step 2: Convert to fraction form
    189,669.87/261,747.18 = 104,788.89/x
  3. Step 3: Cross multiply
    189,669.87x = 261,747.18 × 104,788.89
  4. Step 4: Simplify right side
    189,669.87x = 27,428,196,452.83
  5. Step 5: Solve for x
    x = 27,428,196,452.83/189,669.87
  6. Step 6: Final answer
    x = 144,610.19

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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.