Home / 128,015.74-192,023.58-34,521.46

Finding the Fourth Proportional to 128,015.74, 192,023.58 and 34,521.46

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Solution

The fourth proportional to 128,015.74, 192,023.58 and 34,521.46 is: 51,782.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,015.74 : 192,023.58 = 34,521.46 : x
  2. Step 2: Convert to fraction form
    128,015.74/192,023.58 = 34,521.46/x
  3. Step 3: Cross multiply
    128,015.74x = 192,023.58 × 34,521.46
  4. Step 4: Simplify right side
    128,015.74x = 6,628,934,336.03
  5. Step 5: Solve for x
    x = 6,628,934,336.03/128,015.74
  6. Step 6: Final answer
    x = 51,782.18

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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.