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Finding the Fourth Proportional to 103,356.10, 154,924.80 and 40,151.80

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Solution

The fourth proportional to 103,356.10, 154,924.80 and 40,151.80 is: 60,185.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,356.10 : 154,924.80 = 40,151.80 : x
  2. Step 2: Convert to fraction form
    103,356.10/154,924.80 = 40,151.80/x
  3. Step 3: Cross multiply
    103,356.10x = 154,924.80 × 40,151.80
  4. Step 4: Simplify right side
    103,356.10x = 6,220,509,584.64
  5. Step 5: Solve for x
    x = 6,220,509,584.64/103,356.10
  6. Step 6: Final answer
    x = 60,185.22

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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.