Home / 97,321.20-146,030.40-55,233.60

Finding the Fourth Proportional to 97,321.20, 146,030.40 and 55,233.60

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Solution

The fourth proportional to 97,321.20, 146,030.40 and 55,233.60 is: 82,877.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,321.20 : 146,030.40 = 55,233.60 : x
  2. Step 2: Convert to fraction form
    97,321.20/146,030.40 = 55,233.60/x
  3. Step 3: Cross multiply
    97,321.20x = 146,030.40 × 55,233.60
  4. Step 4: Simplify right side
    97,321.20x = 8,065,784,701.44
  5. Step 5: Solve for x
    x = 8,065,784,701.44/97,321.20
  6. Step 6: Final answer
    x = 82,877.98

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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.