Finding the Fourth Proportional to 134,881.29, 186,136.19 and 74,451.95
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Solution
The fourth proportional to 134,881.29, 186,136.19 and 74,451.95 is: 102,743.69
Step by Step Solution
- Step 1: Write the proportion equation
134,881.29 : 186,136.19 = 74,451.95 : x - Step 2: Convert to fraction form
134,881.29/186,136.19 = 74,451.95/x - Step 3: Cross multiply
134,881.29x = 186,136.19 × 74,451.95 - Step 4: Simplify right side
134,881.29x = 13,858,201,008.13 - Step 5: Solve for x
x = 13,858,201,008.13/134,881.29 - Step 6: Final answer
x = 102,743.69
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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.