Home / 105,815.57-158,728.21-26,930.48

Finding the Fourth Proportional to 105,815.57, 158,728.21 and 26,930.48

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Solution

The fourth proportional to 105,815.57, 158,728.21 and 26,930.48 is: 40,396.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,815.57 : 158,728.21 = 26,930.48 : x
  2. Step 2: Convert to fraction form
    105,815.57/158,728.21 = 26,930.48/x
  3. Step 3: Cross multiply
    105,815.57x = 158,728.21 × 26,930.48
  4. Step 4: Simplify right side
    105,815.57x = 4,274,626,023.87
  5. Step 5: Solve for x
    x = 4,274,626,023.87/105,815.57
  6. Step 6: Final answer
    x = 40,396.95

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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.