Home / 128,252.20-192,032.70-100,604.20

Finding the Fourth Proportional to 128,252.20, 192,032.70 and 100,604.20

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Solution

The fourth proportional to 128,252.20, 192,032.70 and 100,604.20 is: 150,635.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,252.20 : 192,032.70 = 100,604.20 : x
  2. Step 2: Convert to fraction form
    128,252.20/192,032.70 = 100,604.20/x
  3. Step 3: Cross multiply
    128,252.20x = 192,032.70 × 100,604.20
  4. Step 4: Simplify right side
    128,252.20x = 19,319,296,157.34
  5. Step 5: Solve for x
    x = 19,319,296,157.34/128,252.20
  6. Step 6: Final answer
    x = 150,635.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.