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Finding the Fourth Proportional to 103,039.30, 154,364.55 and 96,040.90

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Solution

The fourth proportional to 103,039.30, 154,364.55 and 96,040.90 is: 143,880.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,039.30 : 154,364.55 = 96,040.90 : x
  2. Step 2: Convert to fraction form
    103,039.30/154,364.55 = 96,040.90/x
  3. Step 3: Cross multiply
    103,039.30x = 154,364.55 × 96,040.90
  4. Step 4: Simplify right side
    103,039.30x = 14,825,310,310.10
  5. Step 5: Solve for x
    x = 14,825,310,310.10/103,039.30
  6. Step 6: Final answer
    x = 143,880.15

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.