Finding the Fourth Proportional to 187,849.36, 259,238.12 and 102,971.76
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Solution
The fourth proportional to 187,849.36, 259,238.12 and 102,971.76 is: 142,104.32
Step by Step Solution
- Step 1: Write the proportion equation
187,849.36 : 259,238.12 = 102,971.76 : x - Step 2: Convert to fraction form
187,849.36/259,238.12 = 102,971.76/x - Step 3: Cross multiply
187,849.36x = 259,238.12 × 102,971.76 - Step 4: Simplify right side
187,849.36x = 26,694,205,475.49 - Step 5: Solve for x
x = 26,694,205,475.49/187,849.36 - Step 6: Final answer
x = 142,104.32
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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.