Finding the Fourth Proportional to 98,924.16, 136,512.48 and 58,087.68
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Solution
The fourth proportional to 98,924.16, 136,512.48 and 58,087.68 is: 80,159.32
Step by Step Solution
- Step 1: Write the proportion equation
98,924.16 : 136,512.48 = 58,087.68 : x - Step 2: Convert to fraction form
98,924.16/136,512.48 = 58,087.68/x - Step 3: Cross multiply
98,924.16x = 136,512.48 × 58,087.68 - Step 4: Simplify right side
98,924.16x = 7,929,693,254.25 - Step 5: Solve for x
x = 7,929,693,254.25/98,924.16 - Step 6: Final answer
x = 80,159.32
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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.