Finding the Fourth Proportional to 187,526.39, 258,786.41 and 102,643.47
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Solution
The fourth proportional to 187,526.39, 258,786.41 and 102,643.47 is: 141,647.99
Step by Step Solution
- Step 1: Write the proportion equation
187,526.39 : 258,786.41 = 102,643.47 : x - Step 2: Convert to fraction form
187,526.39/258,786.41 = 102,643.47/x - Step 3: Cross multiply
187,526.39x = 258,786.41 × 102,643.47 - Step 4: Simplify right side
187,526.39x = 26,562,734,598.03 - Step 5: Solve for x
x = 26,562,734,598.03/187,526.39 - Step 6: Final answer
x = 141,647.99
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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.