Finding the Fourth Proportional to 127,389.74, 175,396.29 and 115,579.94
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Solution
The fourth proportional to 127,389.74, 175,396.29 and 115,579.94 is: 159,135.99
Step by Step Solution
- Step 1: Write the proportion equation
127,389.74 : 175,396.29 = 115,579.94 : x - Step 2: Convert to fraction form
127,389.74/175,396.29 = 115,579.94/x - Step 3: Cross multiply
127,389.74x = 175,396.29 × 115,579.94 - Step 4: Simplify right side
127,389.74x = 20,272,292,674.42 - Step 5: Solve for x
x = 20,272,292,674.42/127,389.74 - Step 6: Final answer
x = 159,135.99
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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.