Finding the Fourth Proportional to 145,428.80, 200,624.36 and 85,001.99
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Solution
The fourth proportional to 145,428.80, 200,624.36 and 85,001.99 is: 117,263.35
Step by Step Solution
- Step 1: Write the proportion equation
145,428.80 : 200,624.36 = 85,001.99 : x - Step 2: Convert to fraction form
145,428.80/200,624.36 = 85,001.99/x - Step 3: Cross multiply
145,428.80x = 200,624.36 × 85,001.99 - Step 4: Simplify right side
145,428.80x = 17,053,468,414.34 - Step 5: Solve for x
x = 17,053,468,414.34/145,428.80 - Step 6: Final answer
x = 117,263.35
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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.