Finding the Fourth Proportional to 135,135.27, 186,466.86 and 76,992.57
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Solution
The fourth proportional to 135,135.27, 186,466.86 and 76,992.57 is: 106,238.46
Step by Step Solution
- Step 1: Write the proportion equation
135,135.27 : 186,466.86 = 76,992.57 : x - Step 2: Convert to fraction form
135,135.27/186,466.86 = 76,992.57/x - Step 3: Cross multiply
135,135.27x = 186,466.86 × 76,992.57 - Step 4: Simplify right side
135,135.27x = 14,356,562,771.23 - Step 5: Solve for x
x = 14,356,562,771.23/135,135.27 - Step 6: Final answer
x = 106,238.46
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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.