Home / 148,142.12-204,223.62-105,626.92

Finding the Fourth Proportional to 148,142.12, 204,223.62 and 105,626.92

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Solution

The fourth proportional to 148,142.12, 204,223.62 and 105,626.92 is: 145,613.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,142.12 : 204,223.62 = 105,626.92 : x
  2. Step 2: Convert to fraction form
    148,142.12/204,223.62 = 105,626.92/x
  3. Step 3: Cross multiply
    148,142.12x = 204,223.62 × 105,626.92
  4. Step 4: Simplify right side
    148,142.12x = 21,571,511,971.85
  5. Step 5: Solve for x
    x = 21,571,511,971.85/148,142.12
  6. Step 6: Final answer
    x = 145,613.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.