Home / 103,835.22-155,765.88-40,647.21

Finding the Fourth Proportional to 103,835.22, 155,765.88 and 40,647.21

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Solution

The fourth proportional to 103,835.22, 155,765.88 and 40,647.21 is: 60,975.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,835.22 : 155,765.88 = 40,647.21 : x
  2. Step 2: Convert to fraction form
    103,835.22/155,765.88 = 40,647.21/x
  3. Step 3: Cross multiply
    103,835.22x = 155,765.88 × 40,647.21
  4. Step 4: Simplify right side
    103,835.22x = 6,331,448,435.19
  5. Step 5: Solve for x
    x = 6,331,448,435.19/103,835.22
  6. Step 6: Final answer
    x = 60,975.92

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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.