Finding the Fourth Proportional to 115,226.96, 172,865.34 and 65,330.55
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Solution
The fourth proportional to 115,226.96, 172,865.34 and 65,330.55 is: 98,009.95
Step by Step Solution
- Step 1: Write the proportion equation
115,226.96 : 172,865.34 = 65,330.55 : x - Step 2: Convert to fraction form
115,226.96/172,865.34 = 65,330.55/x - Step 3: Cross multiply
115,226.96x = 172,865.34 × 65,330.55 - Step 4: Simplify right side
115,226.96x = 11,293,387,738.14 - Step 5: Solve for x
x = 11,293,387,738.14/115,226.96 - Step 6: Final answer
x = 98,009.95
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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.