Finding the Fourth Proportional to 111,325.24, 153,572.36 and 70,420.44
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Solution
The fourth proportional to 111,325.24, 153,572.36 and 70,420.44 is: 97,144.48
Step by Step Solution
- Step 1: Write the proportion equation
111,325.24 : 153,572.36 = 70,420.44 : x - Step 2: Convert to fraction form
111,325.24/153,572.36 = 70,420.44/x - Step 3: Cross multiply
111,325.24x = 153,572.36 × 70,420.44 - Step 4: Simplify right side
111,325.24x = 10,814,632,522.99 - Step 5: Solve for x
x = 10,814,632,522.99/111,325.24 - Step 6: Final answer
x = 97,144.48
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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.