Finding the Fourth Proportional to 120,586.24, 166,419.12 and 70,288.48
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Solution
The fourth proportional to 120,586.24, 166,419.12 and 70,288.48 is: 97,003.99
Step by Step Solution
- Step 1: Write the proportion equation
120,586.24 : 166,419.12 = 70,288.48 : x - Step 2: Convert to fraction form
120,586.24/166,419.12 = 70,288.48/x - Step 3: Cross multiply
120,586.24x = 166,419.12 × 70,288.48 - Step 4: Simplify right side
120,586.24x = 11,697,346,987.74 - Step 5: Solve for x
x = 11,697,346,987.74/120,586.24 - Step 6: Final answer
x = 97,003.99
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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.