Finding the Fourth Proportional to 121,416.84, 182,081.52 and 51,301.62
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Solution
The fourth proportional to 121,416.84, 182,081.52 and 51,301.62 is: 76,933.95
Step by Step Solution
- Step 1: Write the proportion equation
121,416.84 : 182,081.52 = 51,301.62 : x - Step 2: Convert to fraction form
121,416.84/182,081.52 = 51,301.62/x - Step 3: Cross multiply
121,416.84x = 182,081.52 × 51,301.62 - Step 4: Simplify right side
121,416.84x = 9,341,076,948.06 - Step 5: Solve for x
x = 9,341,076,948.06/121,416.84 - Step 6: Final answer
x = 76,933.95
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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.