Home / 103,954.98-155,949.30-40,740.83

Finding the Fourth Proportional to 103,954.98, 155,949.30 and 40,740.83

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Solution

The fourth proportional to 103,954.98, 155,949.30 and 40,740.83 is: 61,117.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,954.98 : 155,949.30 = 40,740.83 : x
  2. Step 2: Convert to fraction form
    103,954.98/155,949.30 = 40,740.83/x
  3. Step 3: Cross multiply
    103,954.98x = 155,949.30 × 40,740.83
  4. Step 4: Simplify right side
    103,954.98x = 6,353,504,309.79
  5. Step 5: Solve for x
    x = 6,353,504,309.79/103,954.98
  6. Step 6: Final answer
    x = 61,117.84

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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.