Finding the Fourth Proportional to 149,850.13, 206,784.88 and 86,188.99
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Solution
The fourth proportional to 149,850.13, 206,784.88 and 86,188.99 is: 118,936.03
Step by Step Solution
- Step 1: Write the proportion equation
149,850.13 : 206,784.88 = 86,188.99 : x - Step 2: Convert to fraction form
149,850.13/206,784.88 = 86,188.99/x - Step 3: Cross multiply
149,850.13x = 206,784.88 × 86,188.99 - Step 4: Simplify right side
149,850.13x = 17,822,579,954.47 - Step 5: Solve for x
x = 17,822,579,954.47/149,850.13 - Step 6: Final answer
x = 118,936.03
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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.