Finding the Fourth Proportional to 126,725.64, 190,152.95 and 79,332.63
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Solution
The fourth proportional to 126,725.64, 190,152.95 and 79,332.63 is: 119,039.31
Step by Step Solution
- Step 1: Write the proportion equation
126,725.64 : 190,152.95 = 79,332.63 : x - Step 2: Convert to fraction form
126,725.64/190,152.95 = 79,332.63/x - Step 3: Cross multiply
126,725.64x = 190,152.95 × 79,332.63 - Step 4: Simplify right side
126,725.64x = 15,085,333,229.10 - Step 5: Solve for x
x = 15,085,333,229.10/126,725.64 - Step 6: Final answer
x = 119,039.31
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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.