Finding the Fourth Proportional to 129,090.87, 193,569.47 and 57,952.26
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Solution
The fourth proportional to 129,090.87, 193,569.47 and 57,952.26 is: 86,898.39
Step by Step Solution
- Step 1: Write the proportion equation
129,090.87 : 193,569.47 = 57,952.26 : x - Step 2: Convert to fraction form
129,090.87/193,569.47 = 57,952.26/x - Step 3: Cross multiply
129,090.87x = 193,569.47 × 57,952.26 - Step 4: Simplify right side
129,090.87x = 11,217,788,869.99 - Step 5: Solve for x
x = 11,217,788,869.99/129,090.87 - Step 6: Final answer
x = 86,898.39
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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.