Finding the Fourth Proportional to 126,400.17, 189,553.75 and 51,479.63
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Solution
The fourth proportional to 126,400.17, 189,553.75 and 51,479.63 is: 77,200.50
Step by Step Solution
- Step 1: Write the proportion equation
126,400.17 : 189,553.75 = 51,479.63 : x - Step 2: Convert to fraction form
126,400.17/189,553.75 = 51,479.63/x - Step 3: Cross multiply
126,400.17x = 189,553.75 × 51,479.63 - Step 4: Simplify right side
126,400.17x = 9,758,155,838.64 - Step 5: Solve for x
x = 9,758,155,838.64/126,400.17 - Step 6: Final answer
x = 77,200.50
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1.5x scale
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.