Finding the Fourth Proportional to 124,811.70, 187,217.55 and 54,827.70
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Solution
The fourth proportional to 124,811.70, 187,217.55 and 54,827.70 is: 82,241.55
Step by Step Solution
- Step 1: Write the proportion equation
124,811.70 : 187,217.55 = 54,827.70 : x - Step 2: Convert to fraction form
124,811.70/187,217.55 = 54,827.70/x - Step 3: Cross multiply
124,811.70x = 187,217.55 × 54,827.70 - Step 4: Simplify right side
124,811.70x = 10,264,707,666.14 - Step 5: Solve for x
x = 10,264,707,666.14/124,811.70 - Step 6: Final answer
x = 82,241.55
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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.