Finding the Fourth Proportional to 135,030.95, 186,346.47 and 74,605.49
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Solution
The fourth proportional to 135,030.95, 186,346.47 and 74,605.49 is: 102,957.65
Step by Step Solution
- Step 1: Write the proportion equation
135,030.95 : 186,346.47 = 74,605.49 : x - Step 2: Convert to fraction form
135,030.95/186,346.47 = 74,605.49/x - Step 3: Cross multiply
135,030.95x = 186,346.47 × 74,605.49 - Step 4: Simplify right side
135,030.95x = 13,902,469,704.12 - Step 5: Solve for x
x = 13,902,469,704.12/135,030.95 - Step 6: Final answer
x = 102,957.65
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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.