Finding the Fourth Proportional to 102,691.80, 153,964.80 and 46,558.80
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Solution
The fourth proportional to 102,691.80, 153,964.80 and 46,558.80 is: 69,805.15
Step by Step Solution
- Step 1: Write the proportion equation
102,691.80 : 153,964.80 = 46,558.80 : x - Step 2: Convert to fraction form
102,691.80/153,964.80 = 46,558.80/x - Step 3: Cross multiply
102,691.80x = 153,964.80 × 46,558.80 - Step 4: Simplify right side
102,691.80x = 7,168,416,330.24 - Step 5: Solve for x
x = 7,168,416,330.24/102,691.80 - Step 6: Final answer
x = 69,805.15
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.