Finding the Fourth Proportional to 135,028.14, 186,342.60 and 74,602.68
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Solution
The fourth proportional to 135,028.14, 186,342.60 and 74,602.68 is: 102,953.78
Step by Step Solution
- Step 1: Write the proportion equation
135,028.14 : 186,342.60 = 74,602.68 : x - Step 2: Convert to fraction form
135,028.14/186,342.60 = 74,602.68/x - Step 3: Cross multiply
135,028.14x = 186,342.60 × 74,602.68 - Step 4: Simplify right side
135,028.14x = 13,901,657,358.17 - Step 5: Solve for x
x = 13,901,657,358.17/135,028.14 - Step 6: Final answer
x = 102,953.78
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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.