Finding the Fourth Proportional to 149,832.24, 206,774.78 and 86,170.09
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Solution
The fourth proportional to 149,832.24, 206,774.78 and 86,170.09 is: 118,918.34
Step by Step Solution
- Step 1: Write the proportion equation
149,832.24 : 206,774.78 = 86,170.09 : x - Step 2: Convert to fraction form
149,832.24/206,774.78 = 86,170.09/x - Step 3: Cross multiply
149,832.24x = 206,774.78 × 86,170.09 - Step 4: Simplify right side
149,832.24x = 17,817,801,402.33 - Step 5: Solve for x
x = 17,817,801,402.33/149,832.24 - Step 6: Final answer
x = 118,918.34
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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.