Finding the Fourth Proportional to 143,192.08, 197,599.61 and 79,533.97
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Solution
The fourth proportional to 143,192.08, 197,599.61 and 79,533.97 is: 109,753.84
Step by Step Solution
- Step 1: Write the proportion equation
143,192.08 : 197,599.61 = 79,533.97 : x - Step 2: Convert to fraction form
143,192.08/197,599.61 = 79,533.97/x - Step 3: Cross multiply
143,192.08x = 197,599.61 × 79,533.97 - Step 4: Simplify right side
143,192.08x = 15,715,880,664.59 - Step 5: Solve for x
x = 15,715,880,664.59/143,192.08 - Step 6: Final answer
x = 109,753.84
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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.