Finding the Fourth Proportional to 127,750.09, 176,256.09 and 74,024.72
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Solution
The fourth proportional to 127,750.09, 176,256.09 and 74,024.72 is: 102,131.50
Step by Step Solution
- Step 1: Write the proportion equation
127,750.09 : 176,256.09 = 74,024.72 : x - Step 2: Convert to fraction form
127,750.09/176,256.09 = 74,024.72/x - Step 3: Cross multiply
127,750.09x = 176,256.09 × 74,024.72 - Step 4: Simplify right side
127,750.09x = 13,047,308,129.71 - Step 5: Solve for x
x = 13,047,308,129.71/127,750.09 - Step 6: Final answer
x = 102,131.50
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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.