Finding the Fourth Proportional to 98,816.10, 136,444.84 and 91,259.66
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Solution
The fourth proportional to 98,816.10, 136,444.84 and 91,259.66 is: 126,010.94
Step by Step Solution
- Step 1: Write the proportion equation
98,816.10 : 136,444.84 = 91,259.66 : x - Step 2: Convert to fraction form
98,816.10/136,444.84 = 91,259.66/x - Step 3: Cross multiply
98,816.10x = 136,444.84 × 91,259.66 - Step 4: Simplify right side
98,816.10x = 12,451,909,707.15 - Step 5: Solve for x
x = 12,451,909,707.15/98,816.10 - Step 6: Final answer
x = 126,010.94
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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.