Home / 190,509.68-262,902.12-105,626.72

Finding the Fourth Proportional to 190,509.68, 262,902.12 and 105,626.72

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Solution

The fourth proportional to 190,509.68, 262,902.12 and 105,626.72 is: 145,764.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,509.68 : 262,902.12 = 105,626.72 : x
  2. Step 2: Convert to fraction form
    190,509.68/262,902.12 = 105,626.72/x
  3. Step 3: Cross multiply
    190,509.68x = 262,902.12 × 105,626.72
  4. Step 4: Simplify right side
    190,509.68x = 27,769,488,616.65
  5. Step 5: Solve for x
    x = 27,769,488,616.65/190,509.68
  6. Step 6: Final answer
    x = 145,764.19

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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.