Finding the Fourth Proportional to 126,739.08, 174,897.23 and 69,376.91
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Solution
The fourth proportional to 126,739.08, 174,897.23 and 69,376.91 is: 95,738.65
Step by Step Solution
- Step 1: Write the proportion equation
126,739.08 : 174,897.23 = 69,376.91 : x - Step 2: Convert to fraction form
126,739.08/174,897.23 = 69,376.91/x - Step 3: Cross multiply
126,739.08x = 174,897.23 × 69,376.91 - Step 4: Simplify right side
126,739.08x = 12,133,828,163.59 - Step 5: Solve for x
x = 12,133,828,163.59/126,739.08 - Step 6: Final answer
x = 95,738.65
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1.5x scale
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.