Finding the Fourth Proportional to 125,242.74, 172,833.84 and 68,653.98
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Solution
The fourth proportional to 125,242.74, 172,833.84 and 68,653.98 is: 94,741.87
Step by Step Solution
- Step 1: Write the proportion equation
125,242.74 : 172,833.84 = 68,653.98 : x - Step 2: Convert to fraction form
125,242.74/172,833.84 = 68,653.98/x - Step 3: Cross multiply
125,242.74x = 172,833.84 × 68,653.98 - Step 4: Simplify right side
125,242.74x = 11,865,730,994.68 - Step 5: Solve for x
x = 11,865,730,994.68/125,242.74 - Step 6: Final answer
x = 94,741.87
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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.