Finding the Fourth Proportional to 135,845.51, 187,467.51 and 84,887.87
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Solution
The fourth proportional to 135,845.51, 187,467.51 and 84,887.87 is: 117,145.70
Step by Step Solution
- Step 1: Write the proportion equation
135,845.51 : 187,467.51 = 84,887.87 : x - Step 2: Convert to fraction form
135,845.51/187,467.51 = 84,887.87/x - Step 3: Cross multiply
135,845.51x = 187,467.51 × 84,887.87 - Step 4: Simplify right side
135,845.51x = 15,913,717,618.10 - Step 5: Solve for x
x = 15,913,717,618.10/135,845.51 - Step 6: Final answer
x = 117,145.70
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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.