Finding the Fourth Proportional to 121,616.55, 182,378.34 and 58,419.09
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Solution
The fourth proportional to 121,616.55, 182,378.34 and 58,419.09 is: 87,606.31
Step by Step Solution
- Step 1: Write the proportion equation
121,616.55 : 182,378.34 = 58,419.09 : x - Step 2: Convert to fraction form
121,616.55/182,378.34 = 58,419.09/x - Step 3: Cross multiply
121,616.55x = 182,378.34 × 58,419.09 - Step 4: Simplify right side
121,616.55x = 10,654,376,658.51 - Step 5: Solve for x
x = 10,654,376,658.51/121,616.55 - Step 6: Final answer
x = 87,606.31
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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.