Finding the Fourth Proportional to 141,993.12, 212,989.68 and 48,499.68
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Solution
The fourth proportional to 141,993.12, 212,989.68 and 48,499.68 is: 72,749.52
Step by Step Solution
- Step 1: Write the proportion equation
141,993.12 : 212,989.68 = 48,499.68 : x - Step 2: Convert to fraction form
141,993.12/212,989.68 = 48,499.68/x - Step 3: Cross multiply
141,993.12x = 212,989.68 × 48,499.68 - Step 4: Simplify right side
141,993.12x = 10,329,931,323.30 - Step 5: Solve for x
x = 10,329,931,323.30/141,993.12 - Step 6: Final answer
x = 72,749.52
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1.5x scale
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.