Finding the Fourth Proportional to 98,703.36, 136,183.68 and 56,246.40
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Solution
The fourth proportional to 98,703.36, 136,183.68 and 56,246.40 is: 77,604.67
Step by Step Solution
- Step 1: Write the proportion equation
98,703.36 : 136,183.68 = 56,246.40 : x - Step 2: Convert to fraction form
98,703.36/136,183.68 = 56,246.40/x - Step 3: Cross multiply
98,703.36x = 136,183.68 × 56,246.40 - Step 4: Simplify right side
98,703.36x = 7,659,841,738.75 - Step 5: Solve for x
x = 7,659,841,738.75/98,703.36 - Step 6: Final answer
x = 77,604.67
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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.