Finding the Fourth Proportional to 144,781.29, 216,181.64 and 129,690.99
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Solution
The fourth proportional to 144,781.29, 216,181.64 and 129,690.99 is: 193,649.41
Step by Step Solution
- Step 1: Write the proportion equation
144,781.29 : 216,181.64 = 129,690.99 : x - Step 2: Convert to fraction form
144,781.29/216,181.64 = 129,690.99/x - Step 3: Cross multiply
144,781.29x = 216,181.64 × 129,690.99 - Step 4: Simplify right side
144,781.29x = 28,036,811,235.65 - Step 5: Solve for x
x = 28,036,811,235.65/144,781.29 - Step 6: Final answer
x = 193,649.41
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.