Finding the Fourth Proportional to 101,858.96, 140,562.68 and 56,536.84
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Solution
The fourth proportional to 101,858.96, 140,562.68 and 56,536.84 is: 78,019.35
Step by Step Solution
- Step 1: Write the proportion equation
101,858.96 : 140,562.68 = 56,536.84 : x - Step 2: Convert to fraction form
101,858.96/140,562.68 = 56,536.84/x - Step 3: Cross multiply
101,858.96x = 140,562.68 × 56,536.84 - Step 4: Simplify right side
101,858.96x = 7,946,969,749.13 - Step 5: Solve for x
x = 7,946,969,749.13/101,858.96 - Step 6: Final answer
x = 78,019.35
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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.