Finding the Fourth Proportional to 130,215.19, 195,342.28 and 47,128.63
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Solution
The fourth proportional to 130,215.19, 195,342.28 and 47,128.63 is: 70,700.00
Step by Step Solution
- Step 1: Write the proportion equation
130,215.19 : 195,342.28 = 47,128.63 : x - Step 2: Convert to fraction form
130,215.19/195,342.28 = 47,128.63/x - Step 3: Cross multiply
130,215.19x = 195,342.28 × 47,128.63 - Step 4: Simplify right side
130,215.19x = 9,206,213,608.03 - Step 5: Solve for x
x = 9,206,213,608.03/130,215.19 - Step 6: Final answer
x = 70,700.00
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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.