Finding the Fourth Proportional to 119,649.05, 165,116.80 and 65,935.99
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Solution
The fourth proportional to 119,649.05, 165,116.80 and 65,935.99 is: 90,992.28
Step by Step Solution
- Step 1: Write the proportion equation
119,649.05 : 165,116.80 = 65,935.99 : x - Step 2: Convert to fraction form
119,649.05/165,116.80 = 65,935.99/x - Step 3: Cross multiply
119,649.05x = 165,116.80 × 65,935.99 - Step 4: Simplify right side
119,649.05x = 10,887,140,272.04 - Step 5: Solve for x
x = 10,887,140,272.04/119,649.05 - Step 6: Final answer
x = 90,992.28
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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.