Finding the Fourth Proportional to 167,919.30, 251,966.43 and 74,403.18
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Solution
The fourth proportional to 167,919.30, 251,966.43 and 74,403.18 is: 111,643.53
Step by Step Solution
- Step 1: Write the proportion equation
167,919.30 : 251,966.43 = 74,403.18 : x - Step 2: Convert to fraction form
167,919.30/251,966.43 = 74,403.18/x - Step 3: Cross multiply
167,919.30x = 251,966.43 × 74,403.18 - Step 4: Simplify right side
167,919.30x = 18,747,103,645.25 - Step 5: Solve for x
x = 18,747,103,645.25/167,919.30 - Step 6: Final answer
x = 111,643.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.