Home / 103,808.24-155,688.42-40,629.86

Finding the Fourth Proportional to 103,808.24, 155,688.42 and 40,629.86

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Solution

The fourth proportional to 103,808.24, 155,688.42 and 40,629.86 is: 60,935.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,808.24 : 155,688.42 = 40,629.86 : x
  2. Step 2: Convert to fraction form
    103,808.24/155,688.42 = 40,629.86/x
  3. Step 3: Cross multiply
    103,808.24x = 155,688.42 × 40,629.86
  4. Step 4: Simplify right side
    103,808.24x = 6,325,598,708.22
  5. Step 5: Solve for x
    x = 6,325,598,708.22/103,808.24
  6. Step 6: Final answer
    x = 60,935.42

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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.