Finding the Fourth Proportional to 102,612.76, 154,152.72 and 74,237.26
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Solution
The fourth proportional to 102,612.76, 154,152.72 and 74,237.26 is: 111,524.88
Step by Step Solution
- Step 1: Write the proportion equation
102,612.76 : 154,152.72 = 74,237.26 : x - Step 2: Convert to fraction form
102,612.76/154,152.72 = 74,237.26/x - Step 3: Cross multiply
102,612.76x = 154,152.72 × 74,237.26 - Step 4: Simplify right side
102,612.76x = 11,443,875,554.35 - Step 5: Solve for x
x = 11,443,875,554.35/102,612.76 - Step 6: Final answer
x = 111,524.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.