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Finding the Fourth Proportional to 192,012.85, 264,976.81 and 107,129.71

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Solution

The fourth proportional to 192,012.85, 264,976.81 and 107,129.71 is: 147,838.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,012.85 : 264,976.81 = 107,129.71 : x
  2. Step 2: Convert to fraction form
    192,012.85/264,976.81 = 107,129.71/x
  3. Step 3: Cross multiply
    192,012.85x = 264,976.81 × 107,129.71
  4. Step 4: Simplify right side
    192,012.85x = 28,386,888,812.03
  5. Step 5: Solve for x
    x = 28,386,888,812.03/192,012.85
  6. Step 6: Final answer
    x = 147,838.48

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1.5x scale

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.