Finding the Fourth Proportional to 148,680.64, 205,173.12 and 81,614.08
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Solution
The fourth proportional to 148,680.64, 205,173.12 and 81,614.08 is: 112,624.05
Step by Step Solution
- Step 1: Write the proportion equation
148,680.64 : 205,173.12 = 81,614.08 : x - Step 2: Convert to fraction form
148,680.64/205,173.12 = 81,614.08/x - Step 3: Cross multiply
148,680.64x = 205,173.12 × 81,614.08 - Step 4: Simplify right side
148,680.64x = 16,745,015,429.53 - Step 5: Solve for x
x = 16,745,015,429.53/148,680.64 - Step 6: Final answer
x = 112,624.05
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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.