Finding the Fourth Proportional to 127,948.80, 176,512.24 and 74,202.66
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Solution
The fourth proportional to 127,948.80, 176,512.24 and 74,202.66 is: 102,366.55
Step by Step Solution
- Step 1: Write the proportion equation
127,948.80 : 176,512.24 = 74,202.66 : x - Step 2: Convert to fraction form
127,948.80/176,512.24 = 74,202.66/x - Step 3: Cross multiply
127,948.80x = 176,512.24 × 74,202.66 - Step 4: Simplify right side
127,948.80x = 13,097,677,730.56 - Step 5: Solve for x
x = 13,097,677,730.56/127,948.80 - Step 6: Final answer
x = 102,366.55
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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.