Finding the Fourth Proportional to 187,543.68, 258,816.36 and 102,660.75
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Solution
The fourth proportional to 187,543.68, 258,816.36 and 102,660.75 is: 141,675.16
Step by Step Solution
- Step 1: Write the proportion equation
187,543.68 : 258,816.36 = 102,660.75 : x - Step 2: Convert to fraction form
187,543.68/258,816.36 = 102,660.75/x - Step 3: Cross multiply
187,543.68x = 258,816.36 × 102,660.75 - Step 4: Simplify right side
187,543.68x = 26,570,281,629.87 - Step 5: Solve for x
x = 26,570,281,629.87/187,543.68 - Step 6: Final answer
x = 141,675.16
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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.