Home / 192,021.60-264,988.80-107,138.52

Finding the Fourth Proportional to 192,021.60, 264,988.80 and 107,138.52

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Solution

The fourth proportional to 192,021.60, 264,988.80 and 107,138.52 is: 147,850.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,021.60 : 264,988.80 = 107,138.52 : x
  2. Step 2: Convert to fraction form
    192,021.60/264,988.80 = 107,138.52/x
  3. Step 3: Cross multiply
    192,021.60x = 264,988.80 × 107,138.52
  4. Step 4: Simplify right side
    192,021.60x = 28,390,507,848.58
  5. Step 5: Solve for x
    x = 28,390,507,848.58/192,021.60
  6. Step 6: Final answer
    x = 147,850.60

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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.