Finding the Fourth Proportional to 135,038.68, 186,343.80 and 74,608.68
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Solution
The fourth proportional to 135,038.68, 186,343.80 and 74,608.68 is: 102,954.69
Step by Step Solution
- Step 1: Write the proportion equation
135,038.68 : 186,343.80 = 74,608.68 : x - Step 2: Convert to fraction form
135,038.68/186,343.80 = 74,608.68/x - Step 3: Cross multiply
135,038.68x = 186,343.80 × 74,608.68 - Step 4: Simplify right side
135,038.68x = 13,902,864,944.18 - Step 5: Solve for x
x = 13,902,864,944.18/135,038.68 - Step 6: Final answer
x = 102,954.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.