Finding the Fourth Proportional to 130,163.04, 179,560.26 and 87,647.76
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Solution
The fourth proportional to 130,163.04, 179,560.26 and 87,647.76 is: 120,910.32
Step by Step Solution
- Step 1: Write the proportion equation
130,163.04 : 179,560.26 = 87,647.76 : x - Step 2: Convert to fraction form
130,163.04/179,560.26 = 87,647.76/x - Step 3: Cross multiply
130,163.04x = 179,560.26 × 87,647.76 - Step 4: Simplify right side
130,163.04x = 15,738,054,574.02 - Step 5: Solve for x
x = 15,738,054,574.02/130,163.04 - Step 6: Final answer
x = 120,910.32
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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.