Finding the Fourth Proportional to 127,966.48, 176,536.50 and 74,220.28
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Solution
The fourth proportional to 127,966.48, 176,536.50 and 74,220.28 is: 102,390.79
Step by Step Solution
- Step 1: Write the proportion equation
127,966.48 : 176,536.50 = 74,220.28 : x - Step 2: Convert to fraction form
127,966.48/176,536.50 = 74,220.28/x - Step 3: Cross multiply
127,966.48x = 176,536.50 × 74,220.28 - Step 4: Simplify right side
127,966.48x = 13,102,588,460.22 - Step 5: Solve for x
x = 13,102,588,460.22/127,966.48 - Step 6: Final answer
x = 102,390.79
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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.