Finding the Fourth Proportional to 147,621.21, 203,815.31 and 113,569.62
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Solution
The fourth proportional to 147,621.21, 203,815.31 and 113,569.62 is: 156,801.50
Step by Step Solution
- Step 1: Write the proportion equation
147,621.21 : 203,815.31 = 113,569.62 : x - Step 2: Convert to fraction form
147,621.21/203,815.31 = 113,569.62/x - Step 3: Cross multiply
147,621.21x = 203,815.31 × 113,569.62 - Step 4: Simplify right side
147,621.21x = 23,147,225,719.96 - Step 5: Solve for x
x = 23,147,225,719.96/147,621.21 - Step 6: Final answer
x = 156,801.50
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1.5x scale
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.