Finding the Fourth Proportional to 148,220.16, 204,542.61 and 80,235.75
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Solution
The fourth proportional to 148,220.16, 204,542.61 and 80,235.75 is: 110,724.68
Step by Step Solution
- Step 1: Write the proportion equation
148,220.16 : 204,542.61 = 80,235.75 : x - Step 2: Convert to fraction form
148,220.16/204,542.61 = 80,235.75/x - Step 3: Cross multiply
148,220.16x = 204,542.61 × 80,235.75 - Step 4: Simplify right side
148,220.16x = 16,411,629,720.31 - Step 5: Solve for x
x = 16,411,629,720.31/148,220.16 - Step 6: Final answer
x = 110,724.68
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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.