Finding the Fourth Proportional to 143,202.60, 214,658.10 and 84,007.80
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Solution
The fourth proportional to 143,202.60, 214,658.10 and 84,007.80 is: 125,926.17
Step by Step Solution
- Step 1: Write the proportion equation
143,202.60 : 214,658.10 = 84,007.80 : x - Step 2: Convert to fraction form
143,202.60/214,658.10 = 84,007.80/x - Step 3: Cross multiply
143,202.60x = 214,658.10 × 84,007.80 - Step 4: Simplify right side
143,202.60x = 18,032,954,733.18 - Step 5: Solve for x
x = 18,032,954,733.18/143,202.60 - Step 6: Final answer
x = 125,926.17
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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.