Finding the Fourth Proportional to 133,251.92, 183,885.48 and 72,821.84
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Solution
The fourth proportional to 133,251.92, 183,885.48 and 72,821.84 is: 100,492.95
Step by Step Solution
- Step 1: Write the proportion equation
133,251.92 : 183,885.48 = 72,821.84 : x - Step 2: Convert to fraction form
133,251.92/183,885.48 = 72,821.84/x - Step 3: Cross multiply
133,251.92x = 183,885.48 × 72,821.84 - Step 4: Simplify right side
133,251.92x = 13,390,879,002.88 - Step 5: Solve for x
x = 13,390,879,002.88/133,251.92 - Step 6: Final answer
x = 100,492.95
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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.