Home / 103,971.46-155,957.19-40,821.32

Finding the Fourth Proportional to 103,971.46, 155,957.19 and 40,821.32

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Solution

The fourth proportional to 103,971.46, 155,957.19 and 40,821.32 is: 61,231.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,971.46 : 155,957.19 = 40,821.32 : x
  2. Step 2: Convert to fraction form
    103,971.46/155,957.19 = 40,821.32/x
  3. Step 3: Cross multiply
    103,971.46x = 155,957.19 × 40,821.32
  4. Step 4: Simplify right side
    103,971.46x = 6,366,378,906.68
  5. Step 5: Solve for x
    x = 6,366,378,906.68/103,971.46
  6. Step 6: Final answer
    x = 61,231.98

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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.