Finding the Fourth Proportional to 135,466.06, 203,140.20 and 72,272.09
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Solution
The fourth proportional to 135,466.06, 203,140.20 and 72,272.09 is: 108,376.72
Step by Step Solution
- Step 1: Write the proportion equation
135,466.06 : 203,140.20 = 72,272.09 : x - Step 2: Convert to fraction form
135,466.06/203,140.20 = 72,272.09/x - Step 3: Cross multiply
135,466.06x = 203,140.20 × 72,272.09 - Step 4: Simplify right side
135,466.06x = 14,681,366,817.02 - Step 5: Solve for x
x = 14,681,366,817.02/135,466.06 - Step 6: Final answer
x = 108,376.72
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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.