Home / 175,740.40-263,610.60-128,738.80

Finding the Fourth Proportional to 175,740.40, 263,610.60 and 128,738.80

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Solution

The fourth proportional to 175,740.40, 263,610.60 and 128,738.80 is: 193,108.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,740.40 : 263,610.60 = 128,738.80 : x
  2. Step 2: Convert to fraction form
    175,740.40/263,610.60 = 128,738.80/x
  3. Step 3: Cross multiply
    175,740.40x = 263,610.60 × 128,738.80
  4. Step 4: Simplify right side
    175,740.40x = 33,936,912,311.28
  5. Step 5: Solve for x
    x = 33,936,912,311.28/175,740.40
  6. Step 6: Final answer
    x = 193,108.20

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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.