Home / 128,511.42-192,780.18-44,260.58

Finding the Fourth Proportional to 128,511.42, 192,780.18 and 44,260.58

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Solution

The fourth proportional to 128,511.42, 192,780.18 and 44,260.58 is: 66,395.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,511.42 : 192,780.18 = 44,260.58 : x
  2. Step 2: Convert to fraction form
    128,511.42/192,780.18 = 44,260.58/x
  3. Step 3: Cross multiply
    128,511.42x = 192,780.18 × 44,260.58
  4. Step 4: Simplify right side
    128,511.42x = 8,532,562,579.30
  5. Step 5: Solve for x
    x = 8,532,562,579.30/128,511.42
  6. Step 6: Final answer
    x = 66,395.36

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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.