Finding the Fourth Proportional to 124,045.08, 171,261.30 and 81,676.68
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Solution
The fourth proportional to 124,045.08, 171,261.30 and 81,676.68 is: 112,765.89
Step by Step Solution
- Step 1: Write the proportion equation
124,045.08 : 171,261.30 = 81,676.68 : x - Step 2: Convert to fraction form
124,045.08/171,261.30 = 81,676.68/x - Step 3: Cross multiply
124,045.08x = 171,261.30 × 81,676.68 - Step 4: Simplify right side
124,045.08x = 13,988,054,396.48 - Step 5: Solve for x
x = 13,988,054,396.48/124,045.08 - Step 6: Final answer
x = 112,765.89
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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.