Finding the Fourth Proportional to 102,555.19, 141,533.26 and 57,241.99
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Solution
The fourth proportional to 102,555.19, 141,533.26 and 57,241.99 is: 78,997.90
Step by Step Solution
- Step 1: Write the proportion equation
102,555.19 : 141,533.26 = 57,241.99 : x - Step 2: Convert to fraction form
102,555.19/141,533.26 = 57,241.99/x - Step 3: Cross multiply
102,555.19x = 141,533.26 × 57,241.99 - Step 4: Simplify right side
102,555.19x = 8,101,644,956.65 - Step 5: Solve for x
x = 8,101,644,956.65/102,555.19 - Step 6: Final answer
x = 78,997.90
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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.