Finding the Fourth Proportional to 135,465.06, 203,138.70 and 72,271.09
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Solution
The fourth proportional to 135,465.06, 203,138.70 and 72,271.09 is: 108,375.22
Step by Step Solution
- Step 1: Write the proportion equation
135,465.06 : 203,138.70 = 72,271.09 : x - Step 2: Convert to fraction form
135,465.06/203,138.70 = 72,271.09/x - Step 3: Cross multiply
135,465.06x = 203,138.70 × 72,271.09 - Step 4: Simplify right side
135,465.06x = 14,681,055,270.18 - Step 5: Solve for x
x = 14,681,055,270.18/135,465.06 - Step 6: Final answer
x = 108,375.22
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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.