Finding the Fourth Proportional to 136,184.96, 187,883.53 and 84,478.07
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Solution
The fourth proportional to 136,184.96, 187,883.53 and 84,478.07 is: 116,547.66
Step by Step Solution
- Step 1: Write the proportion equation
136,184.96 : 187,883.53 = 84,478.07 : x - Step 2: Convert to fraction form
136,184.96/187,883.53 = 84,478.07/x - Step 3: Cross multiply
136,184.96x = 187,883.53 × 84,478.07 - Step 4: Simplify right side
136,184.96x = 15,872,037,999.19 - Step 5: Solve for x
x = 15,872,037,999.19/136,184.96 - Step 6: Final answer
x = 116,547.66
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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.