Finding the Fourth Proportional to 143,666.97, 215,281.74 and 68,684.05
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Solution
The fourth proportional to 143,666.97, 215,281.74 and 68,684.05 is: 102,921.51
Step by Step Solution
- Step 1: Write the proportion equation
143,666.97 : 215,281.74 = 68,684.05 : x - Step 2: Convert to fraction form
143,666.97/215,281.74 = 68,684.05/x - Step 3: Cross multiply
143,666.97x = 215,281.74 × 68,684.05 - Step 4: Simplify right side
143,666.97x = 14,786,421,794.25 - Step 5: Solve for x
x = 14,786,421,794.25/143,666.97 - Step 6: Final answer
x = 102,921.51
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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.