Finding the Fourth Proportional to 128,272.74, 177,064.96 and 96,533.70
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Solution
The fourth proportional to 128,272.74, 177,064.96 and 96,533.70 is: 133,253.06
Step by Step Solution
- Step 1: Write the proportion equation
128,272.74 : 177,064.96 = 96,533.70 : x - Step 2: Convert to fraction form
128,272.74/177,064.96 = 96,533.70/x - Step 3: Cross multiply
128,272.74x = 177,064.96 × 96,533.70 - Step 4: Simplify right side
128,272.74x = 17,092,735,729.15 - Step 5: Solve for x
x = 17,092,735,729.15/128,272.74 - Step 6: Final answer
x = 133,253.06
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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.