Finding the Fourth Proportional to 187,717.02, 258,986.10 and 107,087.79
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Solution
The fourth proportional to 187,717.02, 258,986.10 and 107,087.79 is: 147,744.99
Step by Step Solution
- Step 1: Write the proportion equation
187,717.02 : 258,986.10 = 107,087.79 : x - Step 2: Convert to fraction form
187,717.02/258,986.10 = 107,087.79/x - Step 3: Cross multiply
187,717.02x = 258,986.10 × 107,087.79 - Step 4: Simplify right side
187,717.02x = 27,734,249,089.72 - Step 5: Solve for x
x = 27,734,249,089.72/187,717.02 - Step 6: Final answer
x = 147,744.99
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1.5x scale
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.