Finding the Fourth Proportional to 160,486.11, 221,468.11 and 88,864.59
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Solution
The fourth proportional to 160,486.11, 221,468.11 and 88,864.59 is: 122,631.63
Step by Step Solution
- Step 1: Write the proportion equation
160,486.11 : 221,468.11 = 88,864.59 : x - Step 2: Convert to fraction form
160,486.11/221,468.11 = 88,864.59/x - Step 3: Cross multiply
160,486.11x = 221,468.11 × 88,864.59 - Step 4: Simplify right side
160,486.11x = 19,680,672,793.22 - Step 5: Solve for x
x = 19,680,672,793.22/160,486.11 - Step 6: Final answer
x = 122,631.63
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1.5x scale
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.