Finding the Fourth Proportional to 125,630.50, 173,384.83 and 74,643.65
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Solution
The fourth proportional to 125,630.50, 173,384.83 and 74,643.65 is: 103,016.99
Step by Step Solution
- Step 1: Write the proportion equation
125,630.50 : 173,384.83 = 74,643.65 : x - Step 2: Convert to fraction form
125,630.50/173,384.83 = 74,643.65/x - Step 3: Cross multiply
125,630.50x = 173,384.83 × 74,643.65 - Step 4: Simplify right side
125,630.50x = 12,942,075,512.30 - Step 5: Solve for x
x = 12,942,075,512.30/125,630.50 - Step 6: Final answer
x = 103,016.99
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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.