Finding the Fourth Proportional to 97,997.60, 147,082.80 and 84,000.80
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Solution
The fourth proportional to 97,997.60, 147,082.80 and 84,000.80 is: 126,075.26
Step by Step Solution
- Step 1: Write the proportion equation
97,997.60 : 147,082.80 = 84,000.80 : x - Step 2: Convert to fraction form
97,997.60/147,082.80 = 84,000.80/x - Step 3: Cross multiply
97,997.60x = 147,082.80 × 84,000.80 - Step 4: Simplify right side
97,997.60x = 12,355,072,866.24 - Step 5: Solve for x
x = 12,355,072,866.24/97,997.60 - Step 6: Final answer
x = 126,075.26
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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.