Finding the Fourth Proportional to 126,237.99, 174,213.99 and 72,539.85
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Solution
The fourth proportional to 126,237.99, 174,213.99 and 72,539.85 is: 100,108.19
Step by Step Solution
- Step 1: Write the proportion equation
126,237.99 : 174,213.99 = 72,539.85 : x - Step 2: Convert to fraction form
126,237.99/174,213.99 = 72,539.85/x - Step 3: Cross multiply
126,237.99x = 174,213.99 × 72,539.85 - Step 4: Simplify right side
126,237.99x = 12,637,457,355.80 - Step 5: Solve for x
x = 12,637,457,355.80/126,237.99 - Step 6: Final answer
x = 100,108.19
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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.