Finding the Fourth Proportional to 106,674.09, 147,214.70 and 61,352.09
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Solution
The fourth proportional to 106,674.09, 147,214.70 and 61,352.09 is: 84,668.45
Step by Step Solution
- Step 1: Write the proportion equation
106,674.09 : 147,214.70 = 61,352.09 : x - Step 2: Convert to fraction form
106,674.09/147,214.70 = 61,352.09/x - Step 3: Cross multiply
106,674.09x = 147,214.70 × 61,352.09 - Step 4: Simplify right side
106,674.09x = 9,031,929,523.72 - Step 5: Solve for x
x = 9,031,929,523.72/106,674.09 - Step 6: Final answer
x = 84,668.45
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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.