Finding the Fourth Proportional to 156,930.20, 235,395.30 and 51,723.80
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Solution
The fourth proportional to 156,930.20, 235,395.30 and 51,723.80 is: 77,585.70
Step by Step Solution
- Step 1: Write the proportion equation
156,930.20 : 235,395.30 = 51,723.80 : x - Step 2: Convert to fraction form
156,930.20/235,395.30 = 51,723.80/x - Step 3: Cross multiply
156,930.20x = 235,395.30 × 51,723.80 - Step 4: Simplify right side
156,930.20x = 12,175,539,418.14 - Step 5: Solve for x
x = 12,175,539,418.14/156,930.20 - Step 6: Final answer
x = 77,585.70
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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.