Finding the Fourth Proportional to 135,172.40, 202,463.28 and 68,498.06
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Solution
The fourth proportional to 135,172.40, 202,463.28 and 68,498.06 is: 102,597.43
Step by Step Solution
- Step 1: Write the proportion equation
135,172.40 : 202,463.28 = 68,498.06 : x - Step 2: Convert to fraction form
135,172.40/202,463.28 = 68,498.06/x - Step 3: Cross multiply
135,172.40x = 202,463.28 × 68,498.06 - Step 4: Simplify right side
135,172.40x = 13,868,340,888.92 - Step 5: Solve for x
x = 13,868,340,888.92/135,172.40 - Step 6: Final answer
x = 102,597.43
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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.