Finding the Fourth Proportional to 80,173.75, 120,225.07 and 42,726.84
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Solution
The fourth proportional to 80,173.75, 120,225.07 and 42,726.84 is: 64,071.31
Step by Step Solution
- Step 1: Write the proportion equation
80,173.75 : 120,225.07 = 42,726.84 : x - Step 2: Convert to fraction form
80,173.75/120,225.07 = 42,726.84/x - Step 3: Cross multiply
80,173.75x = 120,225.07 × 42,726.84 - Step 4: Simplify right side
80,173.75x = 5,136,837,223.06 - Step 5: Solve for x
x = 5,136,837,223.06/80,173.75 - Step 6: Final answer
x = 64,071.31
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.