Finding the Fourth Proportional to 135,166.44, 186,555.24 and 81,459.12
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Solution
The fourth proportional to 135,166.44, 186,555.24 and 81,459.12 is: 112,428.99
Step by Step Solution
- Step 1: Write the proportion equation
135,166.44 : 186,555.24 = 81,459.12 : x - Step 2: Convert to fraction form
135,166.44/186,555.24 = 81,459.12/x - Step 3: Cross multiply
135,166.44x = 186,555.24 × 81,459.12 - Step 4: Simplify right side
135,166.44x = 15,196,625,681.79 - Step 5: Solve for x
x = 15,196,625,681.79/135,166.44 - Step 6: Final answer
x = 112,428.99
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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.