Finding the Fourth Proportional to 130,246.80, 195,370.20 and 115,213.20
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Solution
The fourth proportional to 130,246.80, 195,370.20 and 115,213.20 is: 172,819.80
Step by Step Solution
- Step 1: Write the proportion equation
130,246.80 : 195,370.20 = 115,213.20 : x - Step 2: Convert to fraction form
130,246.80/195,370.20 = 115,213.20/x - Step 3: Cross multiply
130,246.80x = 195,370.20 × 115,213.20 - Step 4: Simplify right side
130,246.80x = 22,509,225,926.64 - Step 5: Solve for x
x = 22,509,225,926.64/130,246.80 - Step 6: Final answer
x = 172,819.80
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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.