Finding the Fourth Proportional to 160,817.40, 221,957.42 and 92,825.09
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Solution
The fourth proportional to 160,817.40, 221,957.42 and 92,825.09 is: 128,115.59
Step by Step Solution
- Step 1: Write the proportion equation
160,817.40 : 221,957.42 = 92,825.09 : x - Step 2: Convert to fraction form
160,817.40/221,957.42 = 92,825.09/x - Step 3: Cross multiply
160,817.40x = 221,957.42 × 92,825.09 - Step 4: Simplify right side
160,817.40x = 20,603,216,746.10 - Step 5: Solve for x
x = 20,603,216,746.10/160,817.40 - Step 6: Final answer
x = 128,115.59
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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.