Finding the Fourth Proportional to 130,489.08, 195,733.64 and 31,993.08
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Solution
The fourth proportional to 130,489.08, 195,733.64 and 31,993.08 is: 47,989.62
Step by Step Solution
- Step 1: Write the proportion equation
130,489.08 : 195,733.64 = 31,993.08 : x - Step 2: Convert to fraction form
130,489.08/195,733.64 = 31,993.08/x - Step 3: Cross multiply
130,489.08x = 195,733.64 × 31,993.08 - Step 4: Simplify right side
130,489.08x = 6,262,122,003.21 - Step 5: Solve for x
x = 6,262,122,003.21/130,489.08 - Step 6: Final answer
x = 47,989.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.