Home / 273,739.20-410,570.40-86,769.60

Finding the Fourth Proportional to 273,739.20, 410,570.40 and 86,769.60

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Solution

The fourth proportional to 273,739.20, 410,570.40 and 86,769.60 is: 130,142.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,739.20 : 410,570.40 = 86,769.60 : x
  2. Step 2: Convert to fraction form
    273,739.20/410,570.40 = 86,769.60/x
  3. Step 3: Cross multiply
    273,739.20x = 410,570.40 × 86,769.60
  4. Step 4: Simplify right side
    273,739.20x = 35,625,029,379.84
  5. Step 5: Solve for x
    x = 35,625,029,379.84/273,739.20
  6. Step 6: Final answer
    x = 130,142.23

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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.