Finding the Fourth Proportional to 141,478.26, 195,238.05 and 76,946.09
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Solution
The fourth proportional to 141,478.26, 195,238.05 and 76,946.09 is: 106,184.55
Step by Step Solution
- Step 1: Write the proportion equation
141,478.26 : 195,238.05 = 76,946.09 : x - Step 2: Convert to fraction form
141,478.26/195,238.05 = 76,946.09/x - Step 3: Cross multiply
141,478.26x = 195,238.05 × 76,946.09 - Step 4: Simplify right side
141,478.26x = 15,022,804,566.72 - Step 5: Solve for x
x = 15,022,804,566.72/141,478.26 - Step 6: Final answer
x = 106,184.55
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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.