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Finding the Fourth Proportional to 128,525.84, 192,740.88 and 44,262.56

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Solution

The fourth proportional to 128,525.84, 192,740.88 and 44,262.56 is: 66,377.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,525.84 : 192,740.88 = 44,262.56 : x
  2. Step 2: Convert to fraction form
    128,525.84/192,740.88 = 44,262.56/x
  3. Step 3: Cross multiply
    128,525.84x = 192,740.88 × 44,262.56
  4. Step 4: Simplify right side
    128,525.84x = 8,531,204,765.45
  5. Step 5: Solve for x
    x = 8,531,204,765.45/128,525.84
  6. Step 6: Final answer
    x = 66,377.35

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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.