Home / 148,612.20-222,537.70-81,978.26

Finding the Fourth Proportional to 148,612.20, 222,537.70 and 81,978.26

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Solution

The fourth proportional to 148,612.20, 222,537.70 and 81,978.26 is: 122,757.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,612.20 : 222,537.70 = 81,978.26 : x
  2. Step 2: Convert to fraction form
    148,612.20/222,537.70 = 81,978.26/x
  3. Step 3: Cross multiply
    148,612.20x = 222,537.70 × 81,978.26
  4. Step 4: Simplify right side
    148,612.20x = 18,243,253,430.40
  5. Step 5: Solve for x
    x = 18,243,253,430.40/148,612.20
  6. Step 6: Final answer
    x = 122,757.44

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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.