Finding the Fourth Proportional to 156,397.68, 215,928.60 and 102,777.84
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Solution
The fourth proportional to 156,397.68, 215,928.60 and 102,777.84 is: 141,899.00
Step by Step Solution
- Step 1: Write the proportion equation
156,397.68 : 215,928.60 = 102,777.84 : x - Step 2: Convert to fraction form
156,397.68/215,928.60 = 102,777.84/x - Step 3: Cross multiply
156,397.68x = 215,928.60 × 102,777.84 - Step 4: Simplify right side
156,397.68x = 22,192,675,102.22 - Step 5: Solve for x
x = 22,192,675,102.22/156,397.68 - Step 6: Final answer
x = 141,899.00
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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.