Finding the Fourth Proportional to 105,572.46, 145,690.95 and 60,249.99
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Solution
The fourth proportional to 105,572.46, 145,690.95 and 60,249.99 is: 83,145.54
Step by Step Solution
- Step 1: Write the proportion equation
105,572.46 : 145,690.95 = 60,249.99 : x - Step 2: Convert to fraction form
105,572.46/145,690.95 = 60,249.99/x - Step 3: Cross multiply
105,572.46x = 145,690.95 × 60,249.99 - Step 4: Simplify right side
105,572.46x = 8,777,879,052.87 - Step 5: Solve for x
x = 8,777,879,052.87/105,572.46 - Step 6: Final answer
x = 83,145.54
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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.