Home / 97,931.20-146,945.40-55,843.60

Finding the Fourth Proportional to 97,931.20, 146,945.40 and 55,843.60

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Solution

The fourth proportional to 97,931.20, 146,945.40 and 55,843.60 is: 83,793.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,931.20 : 146,945.40 = 55,843.60 : x
  2. Step 2: Convert to fraction form
    97,931.20/146,945.40 = 55,843.60/x
  3. Step 3: Cross multiply
    97,931.20x = 146,945.40 × 55,843.60
  4. Step 4: Simplify right side
    97,931.20x = 8,205,960,139.44
  5. Step 5: Solve for x
    x = 8,205,960,139.44/97,931.20
  6. Step 6: Final answer
    x = 83,793.11

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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.