Finding the Fourth Proportional to 146,972.31, 202,820.94 and 81,560.48
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Solution
The fourth proportional to 146,972.31, 202,820.94 and 81,560.48 is: 112,552.99
Step by Step Solution
- Step 1: Write the proportion equation
146,972.31 : 202,820.94 = 81,560.48 : x - Step 2: Convert to fraction form
146,972.31/202,820.94 = 81,560.48/x - Step 3: Cross multiply
146,972.31x = 202,820.94 × 81,560.48 - Step 4: Simplify right side
146,972.31x = 16,542,173,220.45 - Step 5: Solve for x
x = 16,542,173,220.45/146,972.31 - Step 6: Final answer
x = 112,552.99
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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.