Finding the Fourth Proportional to 187,983.42, 259,418.39 and 103,101.09
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Solution
The fourth proportional to 187,983.42, 259,418.39 and 103,101.09 is: 142,280.20
Step by Step Solution
- Step 1: Write the proportion equation
187,983.42 : 259,418.39 = 103,101.09 : x - Step 2: Convert to fraction form
187,983.42/259,418.39 = 103,101.09/x - Step 3: Cross multiply
187,983.42x = 259,418.39 × 103,101.09 - Step 4: Simplify right side
187,983.42x = 26,746,318,775.05 - Step 5: Solve for x
x = 26,746,318,775.05/187,983.42 - Step 6: Final answer
x = 142,280.20
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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.