Finding the Fourth Proportional to 156,639.08, 234,662.70 and 121,406.24
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Solution
The fourth proportional to 156,639.08, 234,662.70 and 121,406.24 is: 181,880.00
Step by Step Solution
- Step 1: Write the proportion equation
156,639.08 : 234,662.70 = 121,406.24 : x - Step 2: Convert to fraction form
156,639.08/234,662.70 = 121,406.24/x - Step 3: Cross multiply
156,639.08x = 234,662.70 × 121,406.24 - Step 4: Simplify right side
156,639.08x = 28,489,516,075.25 - Step 5: Solve for x
x = 28,489,516,075.25/156,639.08 - Step 6: Final answer
x = 181,880.00
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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.