Home / 115,286.96-172,923.45-43,225.65

Finding the Fourth Proportional to 115,286.96, 172,923.45 and 43,225.65

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Solution

The fourth proportional to 115,286.96, 172,923.45 and 43,225.65 is: 64,835.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,286.96 : 172,923.45 = 43,225.65 : x
  2. Step 2: Convert to fraction form
    115,286.96/172,923.45 = 43,225.65/x
  3. Step 3: Cross multiply
    115,286.96x = 172,923.45 × 43,225.65
  4. Step 4: Simplify right side
    115,286.96x = 7,474,728,526.49
  5. Step 5: Solve for x
    x = 7,474,728,526.49/115,286.96
  6. Step 6: Final answer
    x = 64,835.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.