Finding the Fourth Proportional to 107,865.63, 161,671.37 and 48,631.95
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Solution
The fourth proportional to 107,865.63, 161,671.37 and 48,631.95 is: 72,890.63
Step by Step Solution
- Step 1: Write the proportion equation
107,865.63 : 161,671.37 = 48,631.95 : x - Step 2: Convert to fraction form
107,865.63/161,671.37 = 48,631.95/x - Step 3: Cross multiply
107,865.63x = 161,671.37 × 48,631.95 - Step 4: Simplify right side
107,865.63x = 7,862,393,739.11 - Step 5: Solve for x
x = 7,862,393,739.11/107,865.63 - Step 6: Final answer
x = 72,890.63
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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.