Finding the Fourth Proportional to 160,388.75, 221,394.80 and 93,320.75
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Solution
The fourth proportional to 160,388.75, 221,394.80 and 93,320.75 is: 128,816.57
Step by Step Solution
- Step 1: Write the proportion equation
160,388.75 : 221,394.80 = 93,320.75 : x - Step 2: Convert to fraction form
160,388.75/221,394.80 = 93,320.75/x - Step 3: Cross multiply
160,388.75x = 221,394.80 × 93,320.75 - Step 4: Simplify right side
160,388.75x = 20,660,728,782.10 - Step 5: Solve for x
x = 20,660,728,782.10/160,388.75 - Step 6: Final answer
x = 128,816.57
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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.