Finding the Fourth Proportional to 156,155.01, 215,493.87 and 84,534.99
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Solution
The fourth proportional to 156,155.01, 215,493.87 and 84,534.99 is: 116,658.26
Step by Step Solution
- Step 1: Write the proportion equation
156,155.01 : 215,493.87 = 84,534.99 : x - Step 2: Convert to fraction form
156,155.01/215,493.87 = 84,534.99/x - Step 3: Cross multiply
156,155.01x = 215,493.87 × 84,534.99 - Step 4: Simplify right side
156,155.01x = 18,216,772,145.51 - Step 5: Solve for x
x = 18,216,772,145.51/156,155.01 - Step 6: Final answer
x = 116,658.26
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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.