Finding the Fourth Proportional to 135,691.42, 203,534.70 and 55,712.02
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Solution
The fourth proportional to 135,691.42, 203,534.70 and 55,712.02 is: 83,567.03
Step by Step Solution
- Step 1: Write the proportion equation
135,691.42 : 203,534.70 = 55,712.02 : x - Step 2: Convert to fraction form
135,691.42/203,534.70 = 55,712.02/x - Step 3: Cross multiply
135,691.42x = 203,534.70 × 55,712.02 - Step 4: Simplify right side
135,691.42x = 11,339,329,277.09 - Step 5: Solve for x
x = 11,339,329,277.09/135,691.42 - Step 6: Final answer
x = 83,567.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.