Finding the Fourth Proportional to 98,698.80, 136,207.89 and 56,250.48
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Solution
The fourth proportional to 98,698.80, 136,207.89 and 56,250.48 is: 77,627.68
Step by Step Solution
- Step 1: Write the proportion equation
98,698.80 : 136,207.89 = 56,250.48 : x - Step 2: Convert to fraction form
98,698.80/136,207.89 = 56,250.48/x - Step 3: Cross multiply
98,698.80x = 136,207.89 × 56,250.48 - Step 4: Simplify right side
98,698.80x = 7,661,759,192.29 - Step 5: Solve for x
x = 7,661,759,192.29/98,698.80 - Step 6: Final answer
x = 77,627.68
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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.