Finding the Fourth Proportional to 102,979.63, 142,114.05 and 58,267.63
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Solution
The fourth proportional to 102,979.63, 142,114.05 and 58,267.63 is: 80,410.55
Step by Step Solution
- Step 1: Write the proportion equation
102,979.63 : 142,114.05 = 58,267.63 : x - Step 2: Convert to fraction form
102,979.63/142,114.05 = 58,267.63/x - Step 3: Cross multiply
102,979.63x = 142,114.05 × 58,267.63 - Step 4: Simplify right side
102,979.63x = 8,280,647,881.29 - Step 5: Solve for x
x = 8,280,647,881.29/102,979.63 - Step 6: Final answer
x = 80,410.55
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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.