Finding the Fourth Proportional to 127,357.36, 175,753.95 and 79,638.64
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Solution
The fourth proportional to 127,357.36, 175,753.95 and 79,638.64 is: 109,901.82
Step by Step Solution
- Step 1: Write the proportion equation
127,357.36 : 175,753.95 = 79,638.64 : x - Step 2: Convert to fraction form
127,357.36/175,753.95 = 79,638.64/x - Step 3: Cross multiply
127,357.36x = 175,753.95 × 79,638.64 - Step 4: Simplify right side
127,357.36x = 13,996,805,552.63 - Step 5: Solve for x
x = 13,996,805,552.63/127,357.36 - Step 6: Final answer
x = 109,901.82
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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.