Finding the Fourth Proportional to 103,027.92, 142,128.36 and 67,201.68
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Solution
The fourth proportional to 103,027.92, 142,128.36 and 67,201.68 is: 92,705.59
Step by Step Solution
- Step 1: Write the proportion equation
103,027.92 : 142,128.36 = 67,201.68 : x - Step 2: Convert to fraction form
103,027.92/142,128.36 = 67,201.68/x - Step 3: Cross multiply
103,027.92x = 142,128.36 × 67,201.68 - Step 4: Simplify right side
103,027.92x = 9,551,264,567.64 - Step 5: Solve for x
x = 9,551,264,567.64/103,027.92 - Step 6: Final answer
x = 92,705.59
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.