Finding the Fourth Proportional to 98,705.24, 136,221.90 and 58,398.68
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Solution
The fourth proportional to 98,705.24, 136,221.90 and 58,398.68 is: 80,595.31
Step by Step Solution
- Step 1: Write the proportion equation
98,705.24 : 136,221.90 = 58,398.68 : x - Step 2: Convert to fraction form
98,705.24/136,221.90 = 58,398.68/x - Step 3: Cross multiply
98,705.24x = 136,221.90 × 58,398.68 - Step 4: Simplify right side
98,705.24x = 7,955,179,147.09 - Step 5: Solve for x
x = 7,955,179,147.09/98,705.24 - Step 6: Final answer
x = 80,595.31
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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.