Finding the Fourth Proportional to 156,694.70, 235,135.42 and 56,862.68
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Solution
The fourth proportional to 156,694.70, 235,135.42 and 56,862.68 is: 85,327.90
Step by Step Solution
- Step 1: Write the proportion equation
156,694.70 : 235,135.42 = 56,862.68 : x - Step 2: Convert to fraction form
156,694.70/235,135.42 = 56,862.68/x - Step 3: Cross multiply
156,694.70x = 235,135.42 × 56,862.68 - Step 4: Simplify right side
156,694.70x = 13,370,430,144.13 - Step 5: Solve for x
x = 13,370,430,144.13/156,694.70 - Step 6: Final answer
x = 85,327.90
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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.