Home / 189,674.65-261,747.96-103,631.79

Finding the Fourth Proportional to 189,674.65, 261,747.96 and 103,631.79

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Solution

The fourth proportional to 189,674.65, 261,747.96 and 103,631.79 is: 143,010.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,674.65 : 261,747.96 = 103,631.79 : x
  2. Step 2: Convert to fraction form
    189,674.65/261,747.96 = 103,631.79/x
  3. Step 3: Cross multiply
    189,674.65x = 261,747.96 × 103,631.79
  4. Step 4: Simplify right side
    189,674.65x = 27,125,408,744.25
  5. Step 5: Solve for x
    x = 27,125,408,744.25/189,674.65
  6. Step 6: Final answer
    x = 143,010.20

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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.