Finding the Fourth Proportional to 149,837.01, 206,781.38 and 86,174.88
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Solution
The fourth proportional to 149,837.01, 206,781.38 and 86,174.88 is: 118,924.96
Step by Step Solution
- Step 1: Write the proportion equation
149,837.01 : 206,781.38 = 86,174.88 : x - Step 2: Convert to fraction form
149,837.01/206,781.38 = 86,174.88/x - Step 3: Cross multiply
149,837.01x = 206,781.38 × 86,174.88 - Step 4: Simplify right side
149,837.01x = 17,819,360,607.73 - Step 5: Solve for x
x = 17,819,360,607.73/149,837.01 - Step 6: Final answer
x = 118,924.96
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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.