Home / 128,510.42-192,778.68-44,259.58

Finding the Fourth Proportional to 128,510.42, 192,778.68 and 44,259.58

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Solution

The fourth proportional to 128,510.42, 192,778.68 and 44,259.58 is: 66,393.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,510.42 : 192,778.68 = 44,259.58 : x
  2. Step 2: Convert to fraction form
    128,510.42/192,778.68 = 44,259.58/x
  3. Step 3: Cross multiply
    128,510.42x = 192,778.68 × 44,259.58
  4. Step 4: Simplify right side
    128,510.42x = 8,532,303,816.70
  5. Step 5: Solve for x
    x = 8,532,303,816.70/128,510.42
  6. Step 6: Final answer
    x = 66,393.87

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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.