Home / 98,000.20-146,849.10-72,922.60

Finding the Fourth Proportional to 98,000.20, 146,849.10 and 72,922.60

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Solution

The fourth proportional to 98,000.20, 146,849.10 and 72,922.60 is: 109,271.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,000.20 : 146,849.10 = 72,922.60 : x
  2. Step 2: Convert to fraction form
    98,000.20/146,849.10 = 72,922.60/x
  3. Step 3: Cross multiply
    98,000.20x = 146,849.10 × 72,922.60
  4. Step 4: Simplify right side
    98,000.20x = 10,708,618,179.66
  5. Step 5: Solve for x
    x = 10,708,618,179.66/98,000.20
  6. Step 6: Final answer
    x = 109,271.39

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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.