Finding the Fourth Proportional to 131,420.10, 197,130.15 and 130,037.70
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Solution
The fourth proportional to 131,420.10, 197,130.15 and 130,037.70 is: 195,056.55
Step by Step Solution
- Step 1: Write the proportion equation
131,420.10 : 197,130.15 = 130,037.70 : x - Step 2: Convert to fraction form
131,420.10/197,130.15 = 130,037.70/x - Step 3: Cross multiply
131,420.10x = 197,130.15 × 130,037.70 - Step 4: Simplify right side
131,420.10x = 25,634,351,306.66 - Step 5: Solve for x
x = 25,634,351,306.66/131,420.10 - Step 6: Final answer
x = 195,056.55
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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.