Finding the Fourth Proportional to 156,210.21, 215,570.21 and 84,590.31
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Solution
The fourth proportional to 156,210.21, 215,570.21 and 84,590.31 is: 116,734.69
Step by Step Solution
- Step 1: Write the proportion equation
156,210.21 : 215,570.21 = 84,590.31 : x - Step 2: Convert to fraction form
156,210.21/215,570.21 = 84,590.31/x - Step 3: Cross multiply
156,210.21x = 215,570.21 × 84,590.31 - Step 4: Simplify right side
156,210.21x = 18,235,150,467.71 - Step 5: Solve for x
x = 18,235,150,467.71/156,210.21 - Step 6: Final answer
x = 116,734.69
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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.