Finding the Fourth Proportional to 189,757.08, 261,985.53 and 118,242.18
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Solution
The fourth proportional to 189,757.08, 261,985.53 and 118,242.18 is: 163,249.46
Step by Step Solution
- Step 1: Write the proportion equation
189,757.08 : 261,985.53 = 118,242.18 : x - Step 2: Convert to fraction form
189,757.08/261,985.53 = 118,242.18/x - Step 3: Cross multiply
189,757.08x = 261,985.53 × 118,242.18 - Step 4: Simplify right side
189,757.08x = 30,977,740,195.66 - Step 5: Solve for x
x = 30,977,740,195.66/189,757.08 - Step 6: Final answer
x = 163,249.46
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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.