Finding the Fourth Proportional to 187,829.10, 259,202.70 and 102,945.96
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Solution
The fourth proportional to 187,829.10, 259,202.70 and 102,945.96 is: 142,064.63
Step by Step Solution
- Step 1: Write the proportion equation
187,829.10 : 259,202.70 = 102,945.96 : x - Step 2: Convert to fraction form
187,829.10/259,202.70 = 102,945.96/x - Step 3: Cross multiply
187,829.10x = 259,202.70 × 102,945.96 - Step 4: Simplify right side
187,829.10x = 26,683,870,786.09 - Step 5: Solve for x
x = 26,683,870,786.09/187,829.10 - Step 6: Final answer
x = 142,064.63
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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.