Finding the Fourth Proportional to 135,658.68, 187,218.56 and 75,235.10
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Solution
The fourth proportional to 135,658.68, 187,218.56 and 75,235.10 is: 103,829.75
Step by Step Solution
- Step 1: Write the proportion equation
135,658.68 : 187,218.56 = 75,235.10 : x - Step 2: Convert to fraction form
135,658.68/187,218.56 = 75,235.10/x - Step 3: Cross multiply
135,658.68x = 187,218.56 × 75,235.10 - Step 4: Simplify right side
135,658.68x = 14,085,407,083.46 - Step 5: Solve for x
x = 14,085,407,083.46/135,658.68 - Step 6: Final answer
x = 103,829.75
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1.5x scale
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.