Finding the Fourth Proportional to 129,340.68, 195,225.80 and 129,340.68
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Solution
The fourth proportional to 129,340.68, 195,225.80 and 129,340.68 is: 195,225.80
Step by Step Solution
- Step 1: Write the proportion equation
129,340.68 : 195,225.80 = 129,340.68 : x - Step 2: Convert to fraction form
129,340.68/195,225.80 = 129,340.68/x - Step 3: Cross multiply
129,340.68x = 195,225.80 × 129,340.68 - Step 4: Simplify right side
129,340.68x = 25,250,638,048.90 - Step 5: Solve for x
x = 25,250,638,048.90/129,340.68 - Step 6: Final answer
x = 195,225.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.