Finding the Fourth Proportional to 125,317.50, 172,922.16 and 71,605.99
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Solution
The fourth proportional to 125,317.50, 172,922.16 and 71,605.99 is: 98,807.13
Step by Step Solution
- Step 1: Write the proportion equation
125,317.50 : 172,922.16 = 71,605.99 : x - Step 2: Convert to fraction form
125,317.50/172,922.16 = 71,605.99/x - Step 3: Cross multiply
125,317.50x = 172,922.16 × 71,605.99 - Step 4: Simplify right side
125,317.50x = 12,382,262,459.74 - Step 5: Solve for x
x = 12,382,262,459.74/125,317.50 - Step 6: Final answer
x = 98,807.13
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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.