Finding the Fourth Proportional to 110,990.58, 153,195.48 and 68,524.74
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Solution
The fourth proportional to 110,990.58, 153,195.48 and 68,524.74 is: 94,581.72
Step by Step Solution
- Step 1: Write the proportion equation
110,990.58 : 153,195.48 = 68,524.74 : x - Step 2: Convert to fraction form
110,990.58/153,195.48 = 68,524.74/x - Step 3: Cross multiply
110,990.58x = 153,195.48 × 68,524.74 - Step 4: Simplify right side
110,990.58x = 10,497,680,436.18 - Step 5: Solve for x
x = 10,497,680,436.18/110,990.58 - Step 6: Final answer
x = 94,581.72
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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.