Finding the Fourth Proportional to 156,957.21, 235,583.78 and 57,213.81
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Solution
The fourth proportional to 156,957.21, 235,583.78 and 57,213.81 is: 85,874.65
Step by Step Solution
- Step 1: Write the proportion equation
156,957.21 : 235,583.78 = 57,213.81 : x - Step 2: Convert to fraction form
156,957.21/235,583.78 = 57,213.81/x - Step 3: Cross multiply
156,957.21x = 235,583.78 × 57,213.81 - Step 4: Simplify right side
156,957.21x = 13,478,645,341.93 - Step 5: Solve for x
x = 13,478,645,341.93/156,957.21 - Step 6: Final answer
x = 85,874.65
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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.