Home / 148,053.20-221,431.80-132,371.60

Finding the Fourth Proportional to 148,053.20, 221,431.80 and 132,371.60

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Solution

The fourth proportional to 148,053.20, 221,431.80 and 132,371.60 is: 197,978.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,053.20 : 221,431.80 = 132,371.60 : x
  2. Step 2: Convert to fraction form
    148,053.20/221,431.80 = 132,371.60/x
  3. Step 3: Cross multiply
    148,053.20x = 221,431.80 × 132,371.60
  4. Step 4: Simplify right side
    148,053.20x = 29,311,281,656.88
  5. Step 5: Solve for x
    x = 29,311,281,656.88/148,053.20
  6. Step 6: Final answer
    x = 197,978.04

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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.