Finding the Fourth Proportional to 106,213.74, 159,320.62 and 39,659.08
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Solution
The fourth proportional to 106,213.74, 159,320.62 and 39,659.08 is: 59,488.62
Step by Step Solution
- Step 1: Write the proportion equation
106,213.74 : 159,320.62 = 39,659.08 : x - Step 2: Convert to fraction form
106,213.74/159,320.62 = 39,659.08/x - Step 3: Cross multiply
106,213.74x = 159,320.62 × 39,659.08 - Step 4: Simplify right side
106,213.74x = 6,318,509,214.23 - Step 5: Solve for x
x = 6,318,509,214.23/106,213.74 - Step 6: Final answer
x = 59,488.62
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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.