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Finding the Fourth Proportional to 103,184.76, 154,790.88 and 40,840.68

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Solution

The fourth proportional to 103,184.76, 154,790.88 and 40,840.68 is: 61,266.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,184.76 : 154,790.88 = 40,840.68 : x
  2. Step 2: Convert to fraction form
    103,184.76/154,790.88 = 40,840.68/x
  3. Step 3: Cross multiply
    103,184.76x = 154,790.88 × 40,840.68
  4. Step 4: Simplify right side
    103,184.76x = 6,321,764,797.00
  5. Step 5: Solve for x
    x = 6,321,764,797.00/103,184.76
  6. Step 6: Final answer
    x = 61,266.46

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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.