Finding the Fourth Proportional to 126,759.92, 189,866.51 and 119,307.28
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Solution
The fourth proportional to 126,759.92, 189,866.51 and 119,307.28 is: 178,703.62
Step by Step Solution
- Step 1: Write the proportion equation
126,759.92 : 189,866.51 = 119,307.28 : x - Step 2: Convert to fraction form
126,759.92/189,866.51 = 119,307.28/x - Step 3: Cross multiply
126,759.92x = 189,866.51 × 119,307.28 - Step 4: Simplify right side
126,759.92x = 22,652,456,871.19 - Step 5: Solve for x
x = 22,652,456,871.19/126,759.92 - Step 6: Final answer
x = 178,703.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.