Finding the Fourth Proportional to 157,753.44, 217,930.05 and 136,495.80
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Solution
The fourth proportional to 157,753.44, 217,930.05 and 136,495.80 is: 188,563.47
Step by Step Solution
- Step 1: Write the proportion equation
157,753.44 : 217,930.05 = 136,495.80 : x - Step 2: Convert to fraction form
157,753.44/217,930.05 = 136,495.80/x - Step 3: Cross multiply
157,753.44x = 217,930.05 × 136,495.80 - Step 4: Simplify right side
157,753.44x = 29,746,536,518.79 - Step 5: Solve for x
x = 29,746,536,518.79/157,753.44 - Step 6: Final answer
x = 188,563.47
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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.