Finding the Fourth Proportional to 102,351.84, 153,511.02 and 72,679.92
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Solution
The fourth proportional to 102,351.84, 153,511.02 and 72,679.92 is: 109,007.99
Step by Step Solution
- Step 1: Write the proportion equation
102,351.84 : 153,511.02 = 72,679.92 : x - Step 2: Convert to fraction form
102,351.84/153,511.02 = 72,679.92/x - Step 3: Cross multiply
102,351.84x = 153,511.02 × 72,679.92 - Step 4: Simplify right side
102,351.84x = 11,157,168,652.72 - Step 5: Solve for x
x = 11,157,168,652.72/102,351.84 - Step 6: Final answer
x = 109,007.99
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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.