Finding the Fourth Proportional to 102,874.06, 141,962.94 and 57,552.84
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Solution
The fourth proportional to 102,874.06, 141,962.94 and 57,552.84 is: 79,421.09
Step by Step Solution
- Step 1: Write the proportion equation
102,874.06 : 141,962.94 = 57,552.84 : x - Step 2: Convert to fraction form
102,874.06/141,962.94 = 57,552.84/x - Step 3: Cross multiply
102,874.06x = 141,962.94 × 57,552.84 - Step 4: Simplify right side
102,874.06x = 8,170,370,371.75 - Step 5: Solve for x
x = 8,170,370,371.75/102,874.06 - Step 6: Final answer
x = 79,421.09
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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.