Finding the Fourth Proportional to 130,445.40, 195,905.70 and 114,115.80
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Solution
The fourth proportional to 130,445.40, 195,905.70 and 114,115.80 is: 171,381.56
Step by Step Solution
- Step 1: Write the proportion equation
130,445.40 : 195,905.70 = 114,115.80 : x - Step 2: Convert to fraction form
130,445.40/195,905.70 = 114,115.80/x - Step 3: Cross multiply
130,445.40x = 195,905.70 × 114,115.80 - Step 4: Simplify right side
130,445.40x = 22,355,935,680.06 - Step 5: Solve for x
x = 22,355,935,680.06/130,445.40 - Step 6: Final answer
x = 171,381.56
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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.