Finding the Fourth Proportional to 102,066.70, 153,098.97 and 31,946.62
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Solution
The fourth proportional to 102,066.70, 153,098.97 and 31,946.62 is: 47,919.59
Step by Step Solution
- Step 1: Write the proportion equation
102,066.70 : 153,098.97 = 31,946.62 : x - Step 2: Convert to fraction form
102,066.70/153,098.97 = 31,946.62/x - Step 3: Cross multiply
102,066.70x = 153,098.97 × 31,946.62 - Step 4: Simplify right side
102,066.70x = 4,890,994,616.98 - Step 5: Solve for x
x = 4,890,994,616.98/102,066.70 - Step 6: Final answer
x = 47,919.59
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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.