Home / 105,920.50-146,183.26-61,208.50

Finding the Fourth Proportional to 105,920.50, 146,183.26 and 61,208.50

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Solution

The fourth proportional to 105,920.50, 146,183.26 and 61,208.50 is: 84,475.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,920.50 : 146,183.26 = 61,208.50 : x
  2. Step 2: Convert to fraction form
    105,920.50/146,183.26 = 61,208.50/x
  3. Step 3: Cross multiply
    105,920.50x = 146,183.26 × 61,208.50
  4. Step 4: Simplify right side
    105,920.50x = 8,947,658,069.71
  5. Step 5: Solve for x
    x = 8,947,658,069.71/105,920.50
  6. Step 6: Final answer
    x = 84,475.23

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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.