Home / 148,720.20-222,432.30-133,038.60

Finding the Fourth Proportional to 148,720.20, 222,432.30 and 133,038.60

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Solution

The fourth proportional to 148,720.20, 222,432.30 and 133,038.60 is: 198,978.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,720.20 : 222,432.30 = 133,038.60 : x
  2. Step 2: Convert to fraction form
    148,720.20/222,432.30 = 133,038.60/x
  3. Step 3: Cross multiply
    148,720.20x = 222,432.30 × 133,038.60
  4. Step 4: Simplify right side
    148,720.20x = 29,592,081,786.78
  5. Step 5: Solve for x
    x = 29,592,081,786.78/148,720.20
  6. Step 6: Final answer
    x = 198,978.23

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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.