Finding the Fourth Proportional to 157,077.20, 235,270.20 and 136,341.20
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Solution
The fourth proportional to 157,077.20, 235,270.20 and 136,341.20 is: 204,211.82
Step by Step Solution
- Step 1: Write the proportion equation
157,077.20 : 235,270.20 = 136,341.20 : x - Step 2: Convert to fraction form
157,077.20/235,270.20 = 136,341.20/x - Step 3: Cross multiply
157,077.20x = 235,270.20 × 136,341.20 - Step 4: Simplify right side
157,077.20x = 32,077,021,392.24 - Step 5: Solve for x
x = 32,077,021,392.24/157,077.20 - Step 6: Final answer
x = 204,211.82
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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.