Finding the Fourth Proportional to 138,617.76, 207,895.99 and 38,751.11
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Solution
The fourth proportional to 138,617.76, 207,895.99 and 38,751.11 is: 58,118.09
Step by Step Solution
- Step 1: Write the proportion equation
138,617.76 : 207,895.99 = 38,751.11 : x - Step 2: Convert to fraction form
138,617.76/207,895.99 = 38,751.11/x - Step 3: Cross multiply
138,617.76x = 207,895.99 × 38,751.11 - Step 4: Simplify right side
138,617.76x = 8,056,199,337.57 - Step 5: Solve for x
x = 8,056,199,337.57/138,617.76 - Step 6: Final answer
x = 58,118.09
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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.