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Finding the Fourth Proportional to 146,203.20, 218,959.20 and 99,201.60

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Solution

The fourth proportional to 146,203.20, 218,959.20 and 99,201.60 is: 148,567.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,203.20 : 218,959.20 = 99,201.60 : x
  2. Step 2: Convert to fraction form
    146,203.20/218,959.20 = 99,201.60/x
  3. Step 3: Cross multiply
    146,203.20x = 218,959.20 × 99,201.60
  4. Step 4: Simplify right side
    146,203.20x = 21,721,102,974.72
  5. Step 5: Solve for x
    x = 21,721,102,974.72/146,203.20
  6. Step 6: Final answer
    x = 148,567.90

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1.5x scale

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.