Finding the Fourth Proportional to 126,363.61, 174,451.83 and 86,136.48
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Solution
The fourth proportional to 126,363.61, 174,451.83 and 86,136.48 is: 118,916.09
Step by Step Solution
- Step 1: Write the proportion equation
126,363.61 : 174,451.83 = 86,136.48 : x - Step 2: Convert to fraction form
126,363.61/174,451.83 = 86,136.48/x - Step 3: Cross multiply
126,363.61x = 174,451.83 × 86,136.48 - Step 4: Simplify right side
126,363.61x = 15,026,666,242.75 - Step 5: Solve for x
x = 15,026,666,242.75/126,363.61 - Step 6: Final answer
x = 118,916.09
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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.