Home / 105,879.81-146,114.23-57,481.70

Finding the Fourth Proportional to 105,879.81, 146,114.23 and 57,481.70

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Solution

The fourth proportional to 105,879.81, 146,114.23 and 57,481.70 is: 79,324.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,879.81 : 146,114.23 = 57,481.70 : x
  2. Step 2: Convert to fraction form
    105,879.81/146,114.23 = 57,481.70/x
  3. Step 3: Cross multiply
    105,879.81x = 146,114.23 × 57,481.70
  4. Step 4: Simplify right side
    105,879.81x = 8,398,894,389.99
  5. Step 5: Solve for x
    x = 8,398,894,389.99/105,879.81
  6. Step 6: Final answer
    x = 79,324.80

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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.