Finding the Fourth Proportional to 149,831.94, 206,772.13 and 89,437.62
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Solution
The fourth proportional to 149,831.94, 206,772.13 and 89,437.62 is: 123,426.33
Step by Step Solution
- Step 1: Write the proportion equation
149,831.94 : 206,772.13 = 89,437.62 : x - Step 2: Convert to fraction form
149,831.94/206,772.13 = 89,437.62/x - Step 3: Cross multiply
149,831.94x = 206,772.13 × 89,437.62 - Step 4: Simplify right side
149,831.94x = 18,493,206,468.24 - Step 5: Solve for x
x = 18,493,206,468.24/149,831.94 - Step 6: Final answer
x = 123,426.33
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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.