Finding the Fourth Proportional to 111,247.24, 153,532.20 and 63,507.76
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Solution
The fourth proportional to 111,247.24, 153,532.20 and 63,507.76 is: 87,646.99
Step by Step Solution
- Step 1: Write the proportion equation
111,247.24 : 153,532.20 = 63,507.76 : x - Step 2: Convert to fraction form
111,247.24/153,532.20 = 63,507.76/x - Step 3: Cross multiply
111,247.24x = 153,532.20 × 63,507.76 - Step 4: Simplify right side
111,247.24x = 9,750,486,109.87 - Step 5: Solve for x
x = 9,750,486,109.87/111,247.24 - Step 6: Final answer
x = 87,646.99
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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.