Home / 128,028.07-192,080.54-60,611.50

Finding the Fourth Proportional to 128,028.07, 192,080.54 and 60,611.50

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Solution

The fourth proportional to 128,028.07, 192,080.54 and 60,611.50 is: 90,935.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,028.07 : 192,080.54 = 60,611.50 : x
  2. Step 2: Convert to fraction form
    128,028.07/192,080.54 = 60,611.50/x
  3. Step 3: Cross multiply
    128,028.07x = 192,080.54 × 60,611.50
  4. Step 4: Simplify right side
    128,028.07x = 11,642,289,650.21
  5. Step 5: Solve for x
    x = 11,642,289,650.21/128,028.07
  6. Step 6: Final answer
    x = 90,935.45

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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.