Finding the Fourth Proportional to 131,056.53, 180,859.28 and 74,468.31
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Solution
The fourth proportional to 131,056.53, 180,859.28 and 74,468.31 is: 102,766.99
Step by Step Solution
- Step 1: Write the proportion equation
131,056.53 : 180,859.28 = 74,468.31 : x - Step 2: Convert to fraction form
131,056.53/180,859.28 = 74,468.31/x - Step 3: Cross multiply
131,056.53x = 180,859.28 × 74,468.31 - Step 4: Simplify right side
131,056.53x = 13,468,284,557.08 - Step 5: Solve for x
x = 13,468,284,557.08/131,056.53 - Step 6: Final answer
x = 102,766.99
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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.