Home / 192,172.71-265,197.34-107,289.78

Finding the Fourth Proportional to 192,172.71, 265,197.34 and 107,289.78

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Solution

The fourth proportional to 192,172.71, 265,197.34 and 107,289.78 is: 148,059.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,172.71 : 265,197.34 = 107,289.78 : x
  2. Step 2: Convert to fraction form
    192,172.71/265,197.34 = 107,289.78/x
  3. Step 3: Cross multiply
    192,172.71x = 265,197.34 × 107,289.78
  4. Step 4: Simplify right side
    192,172.71x = 28,452,964,265.19
  5. Step 5: Solve for x
    x = 28,452,964,265.19/192,172.71
  6. Step 6: Final answer
    x = 148,059.34

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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.