Finding the Fourth Proportional to 136,948.70, 205,423.05 and 48,302.30
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Solution
The fourth proportional to 136,948.70, 205,423.05 and 48,302.30 is: 72,453.45
Step by Step Solution
- Step 1: Write the proportion equation
136,948.70 : 205,423.05 = 48,302.30 : x - Step 2: Convert to fraction form
136,948.70/205,423.05 = 48,302.30/x - Step 3: Cross multiply
136,948.70x = 205,423.05 × 48,302.30 - Step 4: Simplify right side
136,948.70x = 9,922,405,788.02 - Step 5: Solve for x
x = 9,922,405,788.02/136,948.70 - Step 6: Final answer
x = 72,453.45
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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.