Finding the Fourth Proportional to 126,479.98, 174,578.79 and 83,490.88
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Solution
The fourth proportional to 126,479.98, 174,578.79 and 83,490.88 is: 115,241.45
Step by Step Solution
- Step 1: Write the proportion equation
126,479.98 : 174,578.79 = 83,490.88 : x - Step 2: Convert to fraction form
126,479.98/174,578.79 = 83,490.88/x - Step 3: Cross multiply
126,479.98x = 174,578.79 × 83,490.88 - Step 4: Simplify right side
126,479.98x = 14,575,736,806.44 - Step 5: Solve for x
x = 14,575,736,806.44/126,479.98 - Step 6: Final answer
x = 115,241.45
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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.