Finding the Fourth Proportional to 130,216.19, 195,343.78 and 47,129.63
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Solution
The fourth proportional to 130,216.19, 195,343.78 and 47,129.63 is: 70,701.50
Step by Step Solution
- Step 1: Write the proportion equation
130,216.19 : 195,343.78 = 47,129.63 : x - Step 2: Convert to fraction form
130,216.19/195,343.78 = 47,129.63/x - Step 3: Cross multiply
130,216.19x = 195,343.78 × 47,129.63 - Step 4: Simplify right side
130,216.19x = 9,206,480,074.20 - Step 5: Solve for x
x = 9,206,480,074.20/130,216.19 - Step 6: Final answer
x = 70,701.50
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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.