Finding the Fourth Proportional to 125,252.91, 172,867.48 and 79,316.74
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Solution
The fourth proportional to 125,252.91, 172,867.48 and 79,316.74 is: 109,468.79
Step by Step Solution
- Step 1: Write the proportion equation
125,252.91 : 172,867.48 = 79,316.74 : x - Step 2: Convert to fraction form
125,252.91/172,867.48 = 79,316.74/x - Step 3: Cross multiply
125,252.91x = 172,867.48 × 79,316.74 - Step 4: Simplify right side
125,252.91x = 13,711,284,569.03 - Step 5: Solve for x
x = 13,711,284,569.03/125,252.91 - Step 6: Final answer
x = 109,468.79
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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.