Finding the Fourth Proportional to 105,252.11, 145,249.99 and 57,508.41
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Solution
The fourth proportional to 105,252.11, 145,249.99 and 57,508.41 is: 79,362.75
Step by Step Solution
- Step 1: Write the proportion equation
105,252.11 : 145,249.99 = 57,508.41 : x - Step 2: Convert to fraction form
105,252.11/145,249.99 = 57,508.41/x - Step 3: Cross multiply
105,252.11x = 145,249.99 × 57,508.41 - Step 4: Simplify right side
105,252.11x = 8,353,095,977.42 - Step 5: Solve for x
x = 8,353,095,977.42/105,252.11 - Step 6: Final answer
x = 79,362.75
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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.