Finding the Fourth Proportional to 106,563.36, 159,866.64 and 31,684.80
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Solution
The fourth proportional to 106,563.36, 159,866.64 and 31,684.80 is: 47,533.62
Step by Step Solution
- Step 1: Write the proportion equation
106,563.36 : 159,866.64 = 31,684.80 : x - Step 2: Convert to fraction form
106,563.36/159,866.64 = 31,684.80/x - Step 3: Cross multiply
106,563.36x = 159,866.64 × 31,684.80 - Step 4: Simplify right side
106,563.36x = 5,065,342,515.07 - Step 5: Solve for x
x = 5,065,342,515.07/106,563.36 - Step 6: Final answer
x = 47,533.62
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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.