Finding the Fourth Proportional to 129,114.99, 193,672.65 and 40,368.96
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Solution
The fourth proportional to 129,114.99, 193,672.65 and 40,368.96 is: 60,553.49
Step by Step Solution
- Step 1: Write the proportion equation
129,114.99 : 193,672.65 = 40,368.96 : x - Step 2: Convert to fraction form
129,114.99/193,672.65 = 40,368.96/x - Step 3: Cross multiply
129,114.99x = 193,672.65 × 40,368.96 - Step 4: Simplify right side
129,114.99x = 7,818,363,460.94 - Step 5: Solve for x
x = 7,818,363,460.94/129,114.99 - Step 6: Final answer
x = 60,553.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.