Finding the Fourth Proportional to 170,816.98, 235,709.98 and 99,212.17
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Solution
The fourth proportional to 170,816.98, 235,709.98 and 99,212.17 is: 136,902.66
Step by Step Solution
- Step 1: Write the proportion equation
170,816.98 : 235,709.98 = 99,212.17 : x - Step 2: Convert to fraction form
170,816.98/235,709.98 = 99,212.17/x - Step 3: Cross multiply
170,816.98x = 235,709.98 × 99,212.17 - Step 4: Simplify right side
170,816.98x = 23,385,298,606.46 - Step 5: Solve for x
x = 23,385,298,606.46/170,816.98 - Step 6: Final answer
x = 136,902.66
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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.