Finding the Fourth Proportional to 156,135.94, 215,467.70 and 84,516.55
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Solution
The fourth proportional to 156,135.94, 215,467.70 and 84,516.55 is: 116,632.89
Step by Step Solution
- Step 1: Write the proportion equation
156,135.94 : 215,467.70 = 84,516.55 : x - Step 2: Convert to fraction form
156,135.94/215,467.70 = 84,516.55/x - Step 3: Cross multiply
156,135.94x = 215,467.70 × 84,516.55 - Step 4: Simplify right side
156,135.94x = 18,210,585,679.18 - Step 5: Solve for x
x = 18,210,585,679.18/156,135.94 - Step 6: Final answer
x = 116,632.89
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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.