Finding the Fourth Proportional to 126,851.24, 175,090.74 and 76,553.48
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Solution
The fourth proportional to 126,851.24, 175,090.74 and 76,553.48 is: 105,665.55
Step by Step Solution
- Step 1: Write the proportion equation
126,851.24 : 175,090.74 = 76,553.48 : x - Step 2: Convert to fraction form
126,851.24/175,090.74 = 76,553.48/x - Step 3: Cross multiply
126,851.24x = 175,090.74 × 76,553.48 - Step 4: Simplify right side
126,851.24x = 13,403,805,462.78 - Step 5: Solve for x
x = 13,403,805,462.78/126,851.24 - Step 6: Final answer
x = 105,665.55
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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.