Finding the Fourth Proportional to 142,551.08, 213,874.11 and 47,790.63
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Solution
The fourth proportional to 142,551.08, 213,874.11 and 47,790.63 is: 71,701.87
Step by Step Solution
- Step 1: Write the proportion equation
142,551.08 : 213,874.11 = 47,790.63 : x - Step 2: Convert to fraction form
142,551.08/213,874.11 = 47,790.63/x - Step 3: Cross multiply
142,551.08x = 213,874.11 × 47,790.63 - Step 4: Simplify right side
142,551.08x = 10,221,178,457.59 - Step 5: Solve for x
x = 10,221,178,457.59/142,551.08 - Step 6: Final answer
x = 71,701.87
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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.