Home / 103,619.10-155,510.67-40,469.48

Finding the Fourth Proportional to 103,619.10, 155,510.67 and 40,469.48

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Solution

The fourth proportional to 103,619.10, 155,510.67 and 40,469.48 is: 60,736.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,619.10 : 155,510.67 = 40,469.48 : x
  2. Step 2: Convert to fraction form
    103,619.10/155,510.67 = 40,469.48/x
  3. Step 3: Cross multiply
    103,619.10x = 155,510.67 × 40,469.48
  4. Step 4: Simplify right side
    103,619.10x = 6,293,435,171.80
  5. Step 5: Solve for x
    x = 6,293,435,171.80/103,619.10
  6. Step 6: Final answer
    x = 60,736.25

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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.