Home / 128,092.02-192,145.03-53,219.73

Finding the Fourth Proportional to 128,092.02, 192,145.03 and 53,219.73

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Solution

The fourth proportional to 128,092.02, 192,145.03 and 53,219.73 is: 79,832.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,092.02 : 192,145.03 = 53,219.73 : x
  2. Step 2: Convert to fraction form
    128,092.02/192,145.03 = 53,219.73/x
  3. Step 3: Cross multiply
    128,092.02x = 192,145.03 × 53,219.73
  4. Step 4: Simplify right side
    128,092.02x = 10,225,906,124.12
  5. Step 5: Solve for x
    x = 10,225,906,124.12/128,092.02
  6. Step 6: Final answer
    x = 79,832.50

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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.