Finding the Fourth Proportional to 156,200.19, 215,555.95 and 84,579.99
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Solution
The fourth proportional to 156,200.19, 215,555.95 and 84,579.99 is: 116,720.22
Step by Step Solution
- Step 1: Write the proportion equation
156,200.19 : 215,555.95 = 84,579.99 : x - Step 2: Convert to fraction form
156,200.19/215,555.95 = 84,579.99/x - Step 3: Cross multiply
156,200.19x = 215,555.95 × 84,579.99 - Step 4: Simplify right side
156,200.19x = 18,231,720,095.44 - Step 5: Solve for x
x = 18,231,720,095.44/156,200.19 - Step 6: Final answer
x = 116,720.22
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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.