Finding the Fourth Proportional to 150,645.14, 207,908.74 and 86,982.80
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Solution
The fourth proportional to 150,645.14, 207,908.74 and 86,982.80 is: 120,046.92
Step by Step Solution
- Step 1: Write the proportion equation
150,645.14 : 207,908.74 = 86,982.80 : x - Step 2: Convert to fraction form
150,645.14/207,908.74 = 86,982.80/x - Step 3: Cross multiply
150,645.14x = 207,908.74 × 86,982.80 - Step 4: Simplify right side
150,645.14x = 18,084,484,349.67 - Step 5: Solve for x
x = 18,084,484,349.67/150,645.14 - Step 6: Final answer
x = 120,046.92
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1.5x scale
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.