Finding the Fourth Proportional to 135,037.68, 186,342.42 and 74,607.68
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Solution
The fourth proportional to 135,037.68, 186,342.42 and 74,607.68 is: 102,953.31
Step by Step Solution
- Step 1: Write the proportion equation
135,037.68 : 186,342.42 = 74,607.68 : x - Step 2: Convert to fraction form
135,037.68/186,342.42 = 74,607.68/x - Step 3: Cross multiply
135,037.68x = 186,342.42 × 74,607.68 - Step 4: Simplify right side
135,037.68x = 13,902,576,387.42 - Step 5: Solve for x
x = 13,902,576,387.42/135,037.68 - Step 6: Final answer
x = 102,953.31
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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.