Finding the Fourth Proportional to 135,944.78, 187,633.80 and 75,536.19
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Solution
The fourth proportional to 135,944.78, 187,633.80 and 75,536.19 is: 104,256.62
Step by Step Solution
- Step 1: Write the proportion equation
135,944.78 : 187,633.80 = 75,536.19 : x - Step 2: Convert to fraction form
135,944.78/187,633.80 = 75,536.19/x - Step 3: Cross multiply
135,944.78x = 187,633.80 × 75,536.19 - Step 4: Simplify right side
135,944.78x = 14,173,142,367.22 - Step 5: Solve for x
x = 14,173,142,367.22/135,944.78 - Step 6: Final answer
x = 104,256.62
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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.