Finding the Fourth Proportional to 106,436.13, 146,865.87 and 61,116.09
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Solution
The fourth proportional to 106,436.13, 146,865.87 and 61,116.09 is: 84,331.02
Step by Step Solution
- Step 1: Write the proportion equation
106,436.13 : 146,865.87 = 61,116.09 : x - Step 2: Convert to fraction form
106,436.13/146,865.87 = 61,116.09/x - Step 3: Cross multiply
106,436.13x = 146,865.87 × 61,116.09 - Step 4: Simplify right side
106,436.13x = 8,975,867,728.85 - Step 5: Solve for x
x = 8,975,867,728.85/106,436.13 - Step 6: Final answer
x = 84,331.02
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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.