Finding the Fourth Proportional to 189,665.93, 261,757.08 and 103,637.99
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Solution
The fourth proportional to 189,665.93, 261,757.08 and 103,637.99 is: 143,030.31
Step by Step Solution
- Step 1: Write the proportion equation
189,665.93 : 261,757.08 = 103,637.99 : x - Step 2: Convert to fraction form
189,665.93/261,757.08 = 103,637.99/x - Step 3: Cross multiply
189,665.93x = 261,757.08 × 103,637.99 - Step 4: Simplify right side
189,665.93x = 27,127,977,639.47 - Step 5: Solve for x
x = 27,127,977,639.47/189,665.93 - Step 6: Final answer
x = 143,030.31
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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.