Finding the Fourth Proportional to 157,358.38, 236,081.37 and 68,619.70
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Solution
The fourth proportional to 157,358.38, 236,081.37 and 68,619.70 is: 102,948.65
Step by Step Solution
- Step 1: Write the proportion equation
157,358.38 : 236,081.37 = 68,619.70 : x - Step 2: Convert to fraction form
157,358.38/236,081.37 = 68,619.70/x - Step 3: Cross multiply
157,358.38x = 236,081.37 × 68,619.70 - Step 4: Simplify right side
157,358.38x = 16,199,832,784.99 - Step 5: Solve for x
x = 16,199,832,784.99/157,358.38 - Step 6: Final answer
x = 102,948.65
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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.