Home / 148,234.10-222,351.15-81,639.95

Finding the Fourth Proportional to 148,234.10, 222,351.15 and 81,639.95

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Solution

The fourth proportional to 148,234.10, 222,351.15 and 81,639.95 is: 122,459.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,234.10 : 222,351.15 = 81,639.95 : x
  2. Step 2: Convert to fraction form
    148,234.10/222,351.15 = 81,639.95/x
  3. Step 3: Cross multiply
    148,234.10x = 222,351.15 × 81,639.95
  4. Step 4: Simplify right side
    148,234.10x = 18,152,736,768.44
  5. Step 5: Solve for x
    x = 18,152,736,768.44/148,234.10
  6. Step 6: Final answer
    x = 122,459.93

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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.