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Finding the Fourth Proportional to 103,489.85, 154,925.36 and 63,382.54

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Solution

The fourth proportional to 103,489.85, 154,925.36 and 63,382.54 is: 94,884.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,489.85 : 154,925.36 = 63,382.54 : x
  2. Step 2: Convert to fraction form
    103,489.85/154,925.36 = 63,382.54/x
  3. Step 3: Cross multiply
    103,489.85x = 154,925.36 × 63,382.54
  4. Step 4: Simplify right side
    103,489.85x = 9,819,561,735.67
  5. Step 5: Solve for x
    x = 9,819,561,735.67/103,489.85
  6. Step 6: Final answer
    x = 94,884.30

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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.