Finding the Fourth Proportional to 156,768.18, 216,374.22 and 96,390.58
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Solution
The fourth proportional to 156,768.18, 216,374.22 and 96,390.58 is: 133,039.99
Step by Step Solution
- Step 1: Write the proportion equation
156,768.18 : 216,374.22 = 96,390.58 : x - Step 2: Convert to fraction form
156,768.18/216,374.22 = 96,390.58/x - Step 3: Cross multiply
156,768.18x = 216,374.22 × 96,390.58 - Step 4: Simplify right side
156,768.18x = 20,856,436,562.85 - Step 5: Solve for x
x = 20,856,436,562.85/156,768.18 - Step 6: Final answer
x = 133,039.99
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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.