Finding the Fourth Proportional to 157,241.60, 235,862.40 and 68,537.60
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Solution
The fourth proportional to 157,241.60, 235,862.40 and 68,537.60 is: 102,806.40
Step by Step Solution
- Step 1: Write the proportion equation
157,241.60 : 235,862.40 = 68,537.60 : x - Step 2: Convert to fraction form
157,241.60/235,862.40 = 68,537.60/x - Step 3: Cross multiply
157,241.60x = 235,862.40 × 68,537.60 - Step 4: Simplify right side
157,241.60x = 16,165,442,826.24 - Step 5: Solve for x
x = 16,165,442,826.24/157,241.60 - Step 6: Final answer
x = 102,806.40
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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.