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Finding the Fourth Proportional to 192,011.85, 264,975.44 and 107,128.71

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Solution

The fourth proportional to 192,011.85, 264,975.44 and 107,128.71 is: 147,837.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,011.85 : 264,975.44 = 107,128.71 : x
  2. Step 2: Convert to fraction form
    192,011.85/264,975.44 = 107,128.71/x
  3. Step 3: Cross multiply
    192,011.85x = 264,975.44 × 107,128.71
  4. Step 4: Simplify right side
    192,011.85x = 28,386,476,533.24
  5. Step 5: Solve for x
    x = 28,386,476,533.24/192,011.85
  6. Step 6: Final answer
    x = 147,837.11

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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.