Finding the Fourth Proportional to 128,854.08, 177,820.52 and 96,531.44
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Solution
The fourth proportional to 128,854.08, 177,820.52 and 96,531.44 is: 133,214.79
Step by Step Solution
- Step 1: Write the proportion equation
128,854.08 : 177,820.52 = 96,531.44 : x - Step 2: Convert to fraction form
128,854.08/177,820.52 = 96,531.44/x - Step 3: Cross multiply
128,854.08x = 177,820.52 × 96,531.44 - Step 4: Simplify right side
128,854.08x = 17,165,269,485.39 - Step 5: Solve for x
x = 17,165,269,485.39/128,854.08 - Step 6: Final answer
x = 133,214.79
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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.