Home / 190,400.87-262,748.72-105,516.11

Finding the Fourth Proportional to 190,400.87, 262,748.72 and 105,516.11

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Solution

The fourth proportional to 190,400.87, 262,748.72 and 105,516.11 is: 145,609.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,400.87 : 262,748.72 = 105,516.11 : x
  2. Step 2: Convert to fraction form
    190,400.87/262,748.72 = 105,516.11/x
  3. Step 3: Cross multiply
    190,400.87x = 262,748.72 × 105,516.11
  4. Step 4: Simplify right side
    190,400.87x = 27,724,221,791.93
  5. Step 5: Solve for x
    x = 27,724,221,791.93/190,400.87
  6. Step 6: Final answer
    x = 145,609.75

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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.