Finding the Fourth Proportional to 135,201.63, 186,521.87 and 77,827.23
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Solution
The fourth proportional to 135,201.63, 186,521.87 and 77,827.23 is: 107,369.12
Step by Step Solution
- Step 1: Write the proportion equation
135,201.63 : 186,521.87 = 77,827.23 : x - Step 2: Convert to fraction form
135,201.63/186,521.87 = 77,827.23/x - Step 3: Cross multiply
135,201.63x = 186,521.87 × 77,827.23 - Step 4: Simplify right side
135,201.63x = 14,516,480,087.38 - Step 5: Solve for x
x = 14,516,480,087.38/135,201.63 - Step 6: Final answer
x = 107,369.12
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1.5x scale
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.