Finding the Fourth Proportional to 156,840.71, 235,128.81 and 68,027.32
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Solution
The fourth proportional to 156,840.71, 235,128.81 and 68,027.32 is: 101,983.62
Step by Step Solution
- Step 1: Write the proportion equation
156,840.71 : 235,128.81 = 68,027.32 : x - Step 2: Convert to fraction form
156,840.71/235,128.81 = 68,027.32/x - Step 3: Cross multiply
156,840.71x = 235,128.81 × 68,027.32 - Step 4: Simplify right side
156,840.71x = 15,995,182,458.95 - Step 5: Solve for x
x = 15,995,182,458.95/156,840.71 - Step 6: Final answer
x = 101,983.62
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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.