Home / 105,981.78-146,257.53-58,236.33

Finding the Fourth Proportional to 105,981.78, 146,257.53 and 58,236.33

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Solution

The fourth proportional to 105,981.78, 146,257.53 and 58,236.33 is: 80,367.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,981.78 : 146,257.53 = 58,236.33 : x
  2. Step 2: Convert to fraction form
    105,981.78/146,257.53 = 58,236.33/x
  3. Step 3: Cross multiply
    105,981.78x = 146,257.53 × 58,236.33
  4. Step 4: Simplify right side
    105,981.78x = 8,517,501,782.06
  5. Step 5: Solve for x
    x = 8,517,501,782.06/105,981.78
  6. Step 6: Final answer
    x = 80,367.60

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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.