Home / 148,013.20-221,371.80-132,331.60

Finding the Fourth Proportional to 148,013.20, 221,371.80 and 132,331.60

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Solution

The fourth proportional to 148,013.20, 221,371.80 and 132,331.60 is: 197,918.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,013.20 : 221,371.80 = 132,331.60 : x
  2. Step 2: Convert to fraction form
    148,013.20/221,371.80 = 132,331.60/x
  3. Step 3: Cross multiply
    148,013.20x = 221,371.80 × 132,331.60
  4. Step 4: Simplify right side
    148,013.20x = 29,294,484,488.88
  5. Step 5: Solve for x
    x = 29,294,484,488.88/148,013.20
  6. Step 6: Final answer
    x = 197,918.05

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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.