Finding the Fourth Proportional to 112,795.10, 155,657.23 and 67,474.99
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Solution
The fourth proportional to 112,795.10, 155,657.23 and 67,474.99 is: 93,115.48
Step by Step Solution
- Step 1: Write the proportion equation
112,795.10 : 155,657.23 = 67,474.99 : x - Step 2: Convert to fraction form
112,795.10/155,657.23 = 67,474.99/x - Step 3: Cross multiply
112,795.10x = 155,657.23 × 67,474.99 - Step 4: Simplify right side
112,795.10x = 10,502,970,037.68 - Step 5: Solve for x
x = 10,502,970,037.68/112,795.10 - Step 6: Final answer
x = 93,115.48
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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.