Finding the Fourth Proportional to 148,668.19, 205,158.57 and 80,682.26
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Solution
The fourth proportional to 148,668.19, 205,158.57 and 80,682.26 is: 111,339.60
Step by Step Solution
- Step 1: Write the proportion equation
148,668.19 : 205,158.57 = 80,682.26 : x - Step 2: Convert to fraction form
148,668.19/205,158.57 = 80,682.26/x - Step 3: Cross multiply
148,668.19x = 205,158.57 × 80,682.26 - Step 4: Simplify right side
148,668.19x = 16,552,657,085.97 - Step 5: Solve for x
x = 16,552,657,085.97/148,668.19 - Step 6: Final answer
x = 111,339.60
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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.