Finding the Fourth Proportional to 131,404.10, 197,106.15 and 130,021.70
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Solution
The fourth proportional to 131,404.10, 197,106.15 and 130,021.70 is: 195,032.55
Step by Step Solution
- Step 1: Write the proportion equation
131,404.10 : 197,106.15 = 130,021.70 : x - Step 2: Convert to fraction form
131,404.10/197,106.15 = 130,021.70/x - Step 3: Cross multiply
131,404.10x = 197,106.15 × 130,021.70 - Step 4: Simplify right side
131,404.10x = 25,628,076,703.46 - Step 5: Solve for x
x = 25,628,076,703.46/131,404.10 - Step 6: Final answer
x = 195,032.55
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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.