Finding the Fourth Proportional to 153,722.94, 212,056.99 and 125,074.62
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Solution
The fourth proportional to 153,722.94, 212,056.99 and 125,074.62 is: 172,537.34
Step by Step Solution
- Step 1: Write the proportion equation
153,722.94 : 212,056.99 = 125,074.62 : x - Step 2: Convert to fraction form
153,722.94/212,056.99 = 125,074.62/x - Step 3: Cross multiply
153,722.94x = 212,056.99 × 125,074.62 - Step 4: Simplify right side
153,722.94x = 26,522,947,442.59 - Step 5: Solve for x
x = 26,522,947,442.59/153,722.94 - Step 6: Final answer
x = 172,537.34
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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.