Finding the Fourth Proportional to 125,285.56, 172,904.88 and 68,707.84
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Solution
The fourth proportional to 125,285.56, 172,904.88 and 68,707.84 is: 94,822.75
Step by Step Solution
- Step 1: Write the proportion equation
125,285.56 : 172,904.88 = 68,707.84 : x - Step 2: Convert to fraction form
125,285.56/172,904.88 = 68,707.84/x - Step 3: Cross multiply
125,285.56x = 172,904.88 × 68,707.84 - Step 4: Simplify right side
125,285.56x = 11,879,920,830.26 - Step 5: Solve for x
x = 11,879,920,830.26/125,285.56 - Step 6: Final answer
x = 94,822.75
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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.