Home / 105,868.65-146,098.84-57,470.54

Finding the Fourth Proportional to 105,868.65, 146,098.84 and 57,470.54

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Solution

The fourth proportional to 105,868.65, 146,098.84 and 57,470.54 is: 79,309.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,868.65 : 146,098.84 = 57,470.54 : x
  2. Step 2: Convert to fraction form
    105,868.65/146,098.84 = 57,470.54/x
  3. Step 3: Cross multiply
    105,868.65x = 146,098.84 × 57,470.54
  4. Step 4: Simplify right side
    105,868.65x = 8,396,379,449.74
  5. Step 5: Solve for x
    x = 8,396,379,449.74/105,868.65
  6. Step 6: Final answer
    x = 79,309.40

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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.