Finding the Fourth Proportional to 149,852.13, 206,787.64 and 86,190.99
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Solution
The fourth proportional to 149,852.13, 206,787.64 and 86,190.99 is: 118,938.79
Step by Step Solution
- Step 1: Write the proportion equation
149,852.13 : 206,787.64 = 86,190.99 : x - Step 2: Convert to fraction form
149,852.13/206,787.64 = 86,190.99/x - Step 3: Cross multiply
149,852.13x = 206,787.64 × 86,190.99 - Step 4: Simplify right side
149,852.13x = 17,823,231,411.36 - Step 5: Solve for x
x = 17,823,231,411.36/149,852.13 - Step 6: Final answer
x = 118,938.79
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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.