Finding the Fourth Proportional to 160,431.75, 221,454.14 and 93,363.75
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Solution
The fourth proportional to 160,431.75, 221,454.14 and 93,363.75 is: 128,875.92
Step by Step Solution
- Step 1: Write the proportion equation
160,431.75 : 221,454.14 = 93,363.75 : x - Step 2: Convert to fraction form
160,431.75/221,454.14 = 93,363.75/x - Step 3: Cross multiply
160,431.75x = 221,454.14 × 93,363.75 - Step 4: Simplify right side
160,431.75x = 20,675,788,963.43 - Step 5: Solve for x
x = 20,675,788,963.43/160,431.75 - Step 6: Final answer
x = 128,875.92
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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.