Home / 148,021.77-222,105.55-69,124.53

Finding the Fourth Proportional to 148,021.77, 222,105.55 and 69,124.53

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Solution

The fourth proportional to 148,021.77, 222,105.55 and 69,124.53 is: 103,720.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,021.77 : 222,105.55 = 69,124.53 : x
  2. Step 2: Convert to fraction form
    148,021.77/222,105.55 = 69,124.53/x
  3. Step 3: Cross multiply
    148,021.77x = 222,105.55 × 69,124.53
  4. Step 4: Simplify right side
    148,021.77x = 15,352,941,754.14
  5. Step 5: Solve for x
    x = 15,352,941,754.14/148,021.77
  6. Step 6: Final answer
    x = 103,720.84

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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.