Home / 230,029.20-345,173.40-89,769.60

Finding the Fourth Proportional to 230,029.20, 345,173.40 and 89,769.60

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Solution

The fourth proportional to 230,029.20, 345,173.40 and 89,769.60 is: 134,704.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,029.20 : 345,173.40 = 89,769.60 : x
  2. Step 2: Convert to fraction form
    230,029.20/345,173.40 = 89,769.60/x
  3. Step 3: Cross multiply
    230,029.20x = 345,173.40 × 89,769.60
  4. Step 4: Simplify right side
    230,029.20x = 30,986,078,048.64
  5. Step 5: Solve for x
    x = 30,986,078,048.64/230,029.20
  6. Step 6: Final answer
    x = 134,704.98

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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.