Finding the Fourth Proportional to 127,146.16, 175,495.98 and 79,370.74
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Solution
The fourth proportional to 127,146.16, 175,495.98 and 79,370.74 is: 109,553.02
Step by Step Solution
- Step 1: Write the proportion equation
127,146.16 : 175,495.98 = 79,370.74 : x - Step 2: Convert to fraction form
127,146.16/175,495.98 = 79,370.74/x - Step 3: Cross multiply
127,146.16x = 175,495.98 × 79,370.74 - Step 4: Simplify right side
127,146.16x = 13,929,245,799.63 - Step 5: Solve for x
x = 13,929,245,799.63/127,146.16 - Step 6: Final answer
x = 109,553.02
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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.