Finding the Fourth Proportional to 131,738.47, 197,643.34 and 47,507.99
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Solution
The fourth proportional to 131,738.47, 197,643.34 and 47,507.99 is: 71,274.84
Step by Step Solution
- Step 1: Write the proportion equation
131,738.47 : 197,643.34 = 47,507.99 : x - Step 2: Convert to fraction form
131,738.47/197,643.34 = 47,507.99/x - Step 3: Cross multiply
131,738.47x = 197,643.34 × 47,507.99 - Step 4: Simplify right side
131,738.47x = 9,389,637,820.29 - Step 5: Solve for x
x = 9,389,637,820.29/131,738.47 - Step 6: Final answer
x = 71,274.84
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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.