Finding the Fourth Proportional to 98,738.08, 136,257.99 and 53,415.93
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Solution
The fourth proportional to 98,738.08, 136,257.99 and 53,415.93 is: 73,713.68
Step by Step Solution
- Step 1: Write the proportion equation
98,738.08 : 136,257.99 = 53,415.93 : x - Step 2: Convert to fraction form
98,738.08/136,257.99 = 53,415.93/x - Step 3: Cross multiply
98,738.08x = 136,257.99 × 53,415.93 - Step 4: Simplify right side
98,738.08x = 7,278,347,255.78 - Step 5: Solve for x
x = 7,278,347,255.78/98,738.08 - Step 6: Final answer
x = 73,713.68
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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.