Finding the Fourth Proportional to 150,391.88, 207,540.79 and 89,965.07
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Solution
The fourth proportional to 150,391.88, 207,540.79 and 89,965.07 is: 124,151.79
Step by Step Solution
- Step 1: Write the proportion equation
150,391.88 : 207,540.79 = 89,965.07 : x - Step 2: Convert to fraction form
150,391.88/207,540.79 = 89,965.07/x - Step 3: Cross multiply
150,391.88x = 207,540.79 × 89,965.07 - Step 4: Simplify right side
150,391.88x = 18,671,420,437.59 - Step 5: Solve for x
x = 18,671,420,437.59/150,391.88 - Step 6: Final answer
x = 124,151.79
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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.