Finding the Fourth Proportional to 156,271.60, 215,655.84 and 84,651.62
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Solution
The fourth proportional to 156,271.60, 215,655.84 and 84,651.62 is: 116,819.80
Step by Step Solution
- Step 1: Write the proportion equation
156,271.60 : 215,655.84 = 84,651.62 : x - Step 2: Convert to fraction form
156,271.60/215,655.84 = 84,651.62/x - Step 3: Cross multiply
156,271.60x = 215,655.84 × 84,651.62 - Step 4: Simplify right side
156,271.60x = 18,255,616,218.46 - Step 5: Solve for x
x = 18,255,616,218.46/156,271.60 - Step 6: Final answer
x = 116,819.80
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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.