Finding the Fourth Proportional to 127,631.84, 176,130.20 and 71,043.26
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Solution
The fourth proportional to 127,631.84, 176,130.20 and 71,043.26 is: 98,038.73
Step by Step Solution
- Step 1: Write the proportion equation
127,631.84 : 176,130.20 = 71,043.26 : x - Step 2: Convert to fraction form
127,631.84/176,130.20 = 71,043.26/x - Step 3: Cross multiply
127,631.84x = 176,130.20 × 71,043.26 - Step 4: Simplify right side
127,631.84x = 12,512,863,237.24 - Step 5: Solve for x
x = 12,512,863,237.24/127,631.84 - Step 6: Final answer
x = 98,038.73
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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.