Finding the Fourth Proportional to 125,233.12, 172,828.77 and 74,276.02
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Solution
The fourth proportional to 125,233.12, 172,828.77 and 74,276.02 is: 102,505.09
Step by Step Solution
- Step 1: Write the proportion equation
125,233.12 : 172,828.77 = 74,276.02 : x - Step 2: Convert to fraction form
125,233.12/172,828.77 = 74,276.02/x - Step 3: Cross multiply
125,233.12x = 172,828.77 × 74,276.02 - Step 4: Simplify right side
125,233.12x = 12,837,032,312.95 - Step 5: Solve for x
x = 12,837,032,312.95/125,233.12 - Step 6: Final answer
x = 102,505.09
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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.