Finding the Fourth Proportional to 126,698.12, 190,048.50 and 51,767.09
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Solution
The fourth proportional to 126,698.12, 190,048.50 and 51,767.09 is: 77,651.17
Step by Step Solution
- Step 1: Write the proportion equation
126,698.12 : 190,048.50 = 51,767.09 : x - Step 2: Convert to fraction form
126,698.12/190,048.50 = 51,767.09/x - Step 3: Cross multiply
126,698.12x = 190,048.50 × 51,767.09 - Step 4: Simplify right side
126,698.12x = 9,838,257,803.87 - Step 5: Solve for x
x = 9,838,257,803.87/126,698.12 - Step 6: Final answer
x = 77,651.17
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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.