Finding the Fourth Proportional to 147,828.24, 203,979.52 and 84,167.28
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Solution
The fourth proportional to 147,828.24, 203,979.52 and 84,167.28 is: 116,137.49
Step by Step Solution
- Step 1: Write the proportion equation
147,828.24 : 203,979.52 = 84,167.28 : x - Step 2: Convert to fraction form
147,828.24/203,979.52 = 84,167.28/x - Step 3: Cross multiply
147,828.24x = 203,979.52 × 84,167.28 - Step 4: Simplify right side
147,828.24x = 17,168,401,374.11 - Step 5: Solve for x
x = 17,168,401,374.11/147,828.24 - Step 6: Final answer
x = 116,137.49
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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.