Home / 128,706.03-193,056.26-35,211.78

Finding the Fourth Proportional to 128,706.03, 193,056.26 and 35,211.78

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Solution

The fourth proportional to 128,706.03, 193,056.26 and 35,211.78 is: 52,816.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,706.03 : 193,056.26 = 35,211.78 : x
  2. Step 2: Convert to fraction form
    128,706.03/193,056.26 = 35,211.78/x
  3. Step 3: Cross multiply
    128,706.03x = 193,056.26 × 35,211.78
  4. Step 4: Simplify right side
    128,706.03x = 6,797,854,378.68
  5. Step 5: Solve for x
    x = 6,797,854,378.68/128,706.03
  6. Step 6: Final answer
    x = 52,816.91

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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.