Finding the Fourth Proportional to 149,565.88, 206,391.54 and 85,858.84
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Solution
The fourth proportional to 149,565.88, 206,391.54 and 85,858.84 is: 118,479.82
Step by Step Solution
- Step 1: Write the proportion equation
149,565.88 : 206,391.54 = 85,858.84 : x - Step 2: Convert to fraction form
149,565.88/206,391.54 = 85,858.84/x - Step 3: Cross multiply
149,565.88x = 206,391.54 × 85,858.84 - Step 4: Simplify right side
149,565.88x = 17,720,538,210.21 - Step 5: Solve for x
x = 17,720,538,210.21/149,565.88 - Step 6: Final answer
x = 118,479.82
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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.