Finding the Fourth Proportional to 149,851.50, 206,795.79 and 86,193.06
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Solution
The fourth proportional to 149,851.50, 206,795.79 and 86,193.06 is: 118,946.84
Step by Step Solution
- Step 1: Write the proportion equation
149,851.50 : 206,795.79 = 86,193.06 : x - Step 2: Convert to fraction form
149,851.50/206,795.79 = 86,193.06/x - Step 3: Cross multiply
149,851.50x = 206,795.79 × 86,193.06 - Step 4: Simplify right side
149,851.50x = 17,824,361,935.22 - Step 5: Solve for x
x = 17,824,361,935.22/149,851.50 - Step 6: Final answer
x = 118,946.84
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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.