Finding the Fourth Proportional to 119,347.74, 164,695.44 and 65,632.20
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Solution
The fourth proportional to 119,347.74, 164,695.44 and 65,632.20 is: 90,569.99
Step by Step Solution
- Step 1: Write the proportion equation
119,347.74 : 164,695.44 = 65,632.20 : x - Step 2: Convert to fraction form
119,347.74/164,695.44 = 65,632.20/x - Step 3: Cross multiply
119,347.74x = 164,695.44 × 65,632.20 - Step 4: Simplify right side
119,347.74x = 10,809,324,057.17 - Step 5: Solve for x
x = 10,809,324,057.17/119,347.74 - Step 6: Final answer
x = 90,569.99
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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.