Home / 192,639.16-265,827.60-107,739.80

Finding the Fourth Proportional to 192,639.16, 265,827.60 and 107,739.80

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Solution

The fourth proportional to 192,639.16, 265,827.60 and 107,739.80 is: 148,672.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,639.16 : 265,827.60 = 107,739.80 : x
  2. Step 2: Convert to fraction form
    192,639.16/265,827.60 = 107,739.80/x
  3. Step 3: Cross multiply
    192,639.16x = 265,827.60 × 107,739.80
  4. Step 4: Simplify right side
    192,639.16x = 28,640,212,458.48
  5. Step 5: Solve for x
    x = 28,640,212,458.48/192,639.16
  6. Step 6: Final answer
    x = 148,672.85

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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.