Finding the Fourth Proportional to 143,191.98, 197,599.44 and 79,533.84
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Solution
The fourth proportional to 143,191.98, 197,599.44 and 79,533.84 is: 109,753.65
Step by Step Solution
- Step 1: Write the proportion equation
143,191.98 : 197,599.44 = 79,533.84 : x - Step 2: Convert to fraction form
143,191.98/197,599.44 = 79,533.84/x - Step 3: Cross multiply
143,191.98x = 197,599.44 × 79,533.84 - Step 4: Simplify right side
143,191.98x = 15,715,842,245.05 - Step 5: Solve for x
x = 15,715,842,245.05/143,191.98 - Step 6: Final answer
x = 109,753.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.