Finding the Fourth Proportional to 156,862.87, 235,190.28 and 57,011.20
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Solution
The fourth proportional to 156,862.87, 235,190.28 and 57,011.20 is: 85,478.99
Step by Step Solution
- Step 1: Write the proportion equation
156,862.87 : 235,190.28 = 57,011.20 : x - Step 2: Convert to fraction form
156,862.87/235,190.28 = 57,011.20/x - Step 3: Cross multiply
156,862.87x = 235,190.28 × 57,011.20 - Step 4: Simplify right side
156,862.87x = 13,408,479,716.95 - Step 5: Solve for x
x = 13,408,479,716.95/156,862.87 - Step 6: Final answer
x = 85,478.99
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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.