Finding the Fourth Proportional to 160,486.61, 221,468.81 and 88,865.09
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Solution
The fourth proportional to 160,486.61, 221,468.81 and 88,865.09 is: 122,632.32
Step by Step Solution
- Step 1: Write the proportion equation
160,486.61 : 221,468.81 = 88,865.09 : x - Step 2: Convert to fraction form
160,486.61/221,468.81 = 88,865.09/x - Step 3: Cross multiply
160,486.61x = 221,468.81 × 88,865.09 - Step 4: Simplify right side
160,486.61x = 19,680,844,181.17 - Step 5: Solve for x
x = 19,680,844,181.17/160,486.61 - Step 6: Final answer
x = 122,632.32
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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.