Finding the Fourth Proportional to 106,987.80, 160,408.80 and 50,854.80
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Solution
The fourth proportional to 106,987.80, 160,408.80 and 50,854.80 is: 76,247.55
Step by Step Solution
- Step 1: Write the proportion equation
106,987.80 : 160,408.80 = 50,854.80 : x - Step 2: Convert to fraction form
106,987.80/160,408.80 = 50,854.80/x - Step 3: Cross multiply
106,987.80x = 160,408.80 × 50,854.80 - Step 4: Simplify right side
106,987.80x = 8,157,557,442.24 - Step 5: Solve for x
x = 8,157,557,442.24/106,987.80 - Step 6: Final answer
x = 76,247.55
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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.