Finding the Fourth Proportional to 136,038.68, 187,755.66 and 113,341.68
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Solution
The fourth proportional to 136,038.68, 187,755.66 and 113,341.68 is: 156,430.08
Step by Step Solution
- Step 1: Write the proportion equation
136,038.68 : 187,755.66 = 113,341.68 : x - Step 2: Convert to fraction form
136,038.68/187,755.66 = 113,341.68/x - Step 3: Cross multiply
136,038.68x = 187,755.66 × 113,341.68 - Step 4: Simplify right side
136,038.68x = 21,280,541,933.91 - Step 5: Solve for x
x = 21,280,541,933.91/136,038.68 - Step 6: Final answer
x = 156,430.08
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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.