Finding the Fourth Proportional to 126,239.88, 174,212.10 and 69,655.08
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Solution
The fourth proportional to 126,239.88, 174,212.10 and 69,655.08 is: 96,124.60
Step by Step Solution
- Step 1: Write the proportion equation
126,239.88 : 174,212.10 = 69,655.08 : x - Step 2: Convert to fraction form
126,239.88/174,212.10 = 69,655.08/x - Step 3: Cross multiply
126,239.88x = 174,212.10 × 69,655.08 - Step 4: Simplify right side
126,239.88x = 12,134,757,762.47 - Step 5: Solve for x
x = 12,134,757,762.47/126,239.88 - Step 6: Final answer
x = 96,124.60
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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.