Finding the Fourth Proportional to 119,651.05, 165,119.56 and 65,937.99
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Solution
The fourth proportional to 119,651.05, 165,119.56 and 65,937.99 is: 90,995.04
Step by Step Solution
- Step 1: Write the proportion equation
119,651.05 : 165,119.56 = 65,937.99 : x - Step 2: Convert to fraction form
119,651.05/165,119.56 = 65,937.99/x - Step 3: Cross multiply
119,651.05x = 165,119.56 × 65,937.99 - Step 4: Simplify right side
119,651.05x = 10,887,651,896.08 - Step 5: Solve for x
x = 10,887,651,896.08/119,651.05 - Step 6: Final answer
x = 90,995.04
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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.