Finding the Fourth Proportional to 141,404.16, 195,138.24 and 77,745.99
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Solution
The fourth proportional to 141,404.16, 195,138.24 and 77,745.99 is: 107,289.74
Step by Step Solution
- Step 1: Write the proportion equation
141,404.16 : 195,138.24 = 77,745.99 : x - Step 2: Convert to fraction form
141,404.16/195,138.24 = 77,745.99/x - Step 3: Cross multiply
141,404.16x = 195,138.24 × 77,745.99 - Step 4: Simplify right side
141,404.16x = 15,171,215,655.66 - Step 5: Solve for x
x = 15,171,215,655.66/141,404.16 - Step 6: Final answer
x = 107,289.74
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1.5x scale
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.