Finding the Fourth Proportional to 135,938.08, 187,770.96 and 103,475.44
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Solution
The fourth proportional to 135,938.08, 187,770.96 and 103,475.44 is: 142,930.39
Step by Step Solution
- Step 1: Write the proportion equation
135,938.08 : 187,770.96 = 103,475.44 : x - Step 2: Convert to fraction form
135,938.08/187,770.96 = 103,475.44/x - Step 3: Cross multiply
135,938.08x = 187,770.96 × 103,475.44 - Step 4: Simplify right side
135,938.08x = 19,429,682,705.22 - Step 5: Solve for x
x = 19,429,682,705.22/135,938.08 - Step 6: Final answer
x = 142,930.39
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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.