Finding the Fourth Proportional to 102,042.35, 153,029.49 and 42,866.99
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Solution
The fourth proportional to 102,042.35, 153,029.49 and 42,866.99 is: 64,286.18
Step by Step Solution
- Step 1: Write the proportion equation
102,042.35 : 153,029.49 = 42,866.99 : x - Step 2: Convert to fraction form
102,042.35/153,029.49 = 42,866.99/x - Step 3: Cross multiply
102,042.35x = 153,029.49 × 42,866.99 - Step 4: Simplify right side
102,042.35x = 6,559,912,852.39 - Step 5: Solve for x
x = 6,559,912,852.39/102,042.35 - Step 6: Final answer
x = 64,286.18
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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.