Finding the Fourth Proportional to 111,119.38, 153,343.57 and 60,130.99
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Solution
The fourth proportional to 111,119.38, 153,343.57 and 60,130.99 is: 82,980.13
Step by Step Solution
- Step 1: Write the proportion equation
111,119.38 : 153,343.57 = 60,130.99 : x - Step 2: Convert to fraction form
111,119.38/153,343.57 = 60,130.99/x - Step 3: Cross multiply
111,119.38x = 153,343.57 × 60,130.99 - Step 4: Simplify right side
111,119.38x = 9,220,700,674.23 - Step 5: Solve for x
x = 9,220,700,674.23/111,119.38 - Step 6: Final answer
x = 82,980.13
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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.