Home / 148,731.20-222,448.80-133,049.60

Finding the Fourth Proportional to 148,731.20, 222,448.80 and 133,049.60

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Solution

The fourth proportional to 148,731.20, 222,448.80 and 133,049.60 is: 198,994.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,731.20 : 222,448.80 = 133,049.60 : x
  2. Step 2: Convert to fraction form
    148,731.20/222,448.80 = 133,049.60/x
  3. Step 3: Cross multiply
    148,731.20x = 222,448.80 × 133,049.60
  4. Step 4: Simplify right side
    148,731.20x = 29,596,723,860.48
  5. Step 5: Solve for x
    x = 29,596,723,860.48/148,731.20
  6. Step 6: Final answer
    x = 198,994.72

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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.