Finding the Fourth Proportional to 187,855.69, 259,241.76 and 112,404.19
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Solution
The fourth proportional to 187,855.69, 259,241.76 and 112,404.19 is: 155,118.32
Step by Step Solution
- Step 1: Write the proportion equation
187,855.69 : 259,241.76 = 112,404.19 : x - Step 2: Convert to fraction form
187,855.69/259,241.76 = 112,404.19/x - Step 3: Cross multiply
187,855.69x = 259,241.76 × 112,404.19 - Step 4: Simplify right side
187,855.69x = 29,139,859,398.87 - Step 5: Solve for x
x = 29,139,859,398.87/187,855.69 - Step 6: Final answer
x = 155,118.32
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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.