Finding the Fourth Proportional to 102,119.23, 140,922.07 and 56,797.08
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Solution
The fourth proportional to 102,119.23, 140,922.07 and 56,797.08 is: 78,378.60
Step by Step Solution
- Step 1: Write the proportion equation
102,119.23 : 140,922.07 = 56,797.08 : x - Step 2: Convert to fraction form
102,119.23/140,922.07 = 56,797.08/x - Step 3: Cross multiply
102,119.23x = 140,922.07 × 56,797.08 - Step 4: Simplify right side
102,119.23x = 8,003,962,083.56 - Step 5: Solve for x
x = 8,003,962,083.56/102,119.23 - Step 6: Final answer
x = 78,378.60
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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.