Finding the Fourth Proportional to 156,731.20, 235,132.26 and 51,551.08
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Solution
The fourth proportional to 156,731.20, 235,132.26 and 51,551.08 is: 77,338.28
Step by Step Solution
- Step 1: Write the proportion equation
156,731.20 : 235,132.26 = 51,551.08 : x - Step 2: Convert to fraction form
156,731.20/235,132.26 = 51,551.08/x - Step 3: Cross multiply
156,731.20x = 235,132.26 × 51,551.08 - Step 4: Simplify right side
156,731.20x = 12,121,321,945.84 - Step 5: Solve for x
x = 12,121,321,945.84/156,731.20 - Step 6: Final answer
x = 77,338.28
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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.