Finding the Fourth Proportional to 131,559.21, 197,338.35 and 47,319.23
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Solution
The fourth proportional to 131,559.21, 197,338.35 and 47,319.23 is: 70,978.68
Step by Step Solution
- Step 1: Write the proportion equation
131,559.21 : 197,338.35 = 47,319.23 : x - Step 2: Convert to fraction form
131,559.21/197,338.35 = 47,319.23/x - Step 3: Cross multiply
131,559.21x = 197,338.35 × 47,319.23 - Step 4: Simplify right side
131,559.21x = 9,337,898,771.47 - Step 5: Solve for x
x = 9,337,898,771.47/131,559.21 - Step 6: Final answer
x = 70,978.68
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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.