Finding the Fourth Proportional to 156,349.44, 215,762.40 and 84,728.84
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Solution
The fourth proportional to 156,349.44, 215,762.40 and 84,728.84 is: 116,925.89
Step by Step Solution
- Step 1: Write the proportion equation
156,349.44 : 215,762.40 = 84,728.84 : x - Step 2: Convert to fraction form
156,349.44/215,762.40 = 84,728.84/x - Step 3: Cross multiply
156,349.44x = 215,762.40 × 84,728.84 - Step 4: Simplify right side
156,349.44x = 18,281,297,867.62 - Step 5: Solve for x
x = 18,281,297,867.62/156,349.44 - Step 6: Final answer
x = 116,925.89
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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.