Finding the Fourth Proportional to 143,877.96, 198,566.10 and 83,467.08
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Solution
The fourth proportional to 143,877.96, 198,566.10 and 83,467.08 is: 115,192.99
Step by Step Solution
- Step 1: Write the proportion equation
143,877.96 : 198,566.10 = 83,467.08 : x - Step 2: Convert to fraction form
143,877.96/198,566.10 = 83,467.08/x - Step 3: Cross multiply
143,877.96x = 198,566.10 × 83,467.08 - Step 4: Simplify right side
143,877.96x = 16,573,732,553.99 - Step 5: Solve for x
x = 16,573,732,553.99/143,877.96 - Step 6: Final answer
x = 115,192.99
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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.