Finding the Fourth Proportional to 135,822.60, 187,457.38 and 75,412.80
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Solution
The fourth proportional to 135,822.60, 187,457.38 and 75,412.80 is: 104,081.99
Step by Step Solution
- Step 1: Write the proportion equation
135,822.60 : 187,457.38 = 75,412.80 : x - Step 2: Convert to fraction form
135,822.60/187,457.38 = 75,412.80/x - Step 3: Cross multiply
135,822.60x = 187,457.38 × 75,412.80 - Step 4: Simplify right side
135,822.60x = 14,136,685,906.46 - Step 5: Solve for x
x = 14,136,685,906.46/135,822.60 - Step 6: Final answer
x = 104,081.99
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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.