Finding the Fourth Proportional to 102,646.44, 141,647.94 and 57,323.70
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Solution
The fourth proportional to 102,646.44, 141,647.94 and 57,323.70 is: 79,104.39
Step by Step Solution
- Step 1: Write the proportion equation
102,646.44 : 141,647.94 = 57,323.70 : x - Step 2: Convert to fraction form
102,646.44/141,647.94 = 57,323.70/x - Step 3: Cross multiply
102,646.44x = 141,647.94 × 57,323.70 - Step 4: Simplify right side
102,646.44x = 8,119,784,018.18 - Step 5: Solve for x
x = 8,119,784,018.18/102,646.44 - Step 6: Final answer
x = 79,104.39
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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.