Finding the Fourth Proportional to 130,154.09, 195,261.21 and 55,276.68
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Solution
The fourth proportional to 130,154.09, 195,261.21 and 55,276.68 is: 82,927.79
Step by Step Solution
- Step 1: Write the proportion equation
130,154.09 : 195,261.21 = 55,276.68 : x - Step 2: Convert to fraction form
130,154.09/195,261.21 = 55,276.68/x - Step 3: Cross multiply
130,154.09x = 195,261.21 × 55,276.68 - Step 4: Simplify right side
130,154.09x = 10,793,391,421.58 - Step 5: Solve for x
x = 10,793,391,421.58/130,154.09 - Step 6: Final answer
x = 82,927.79
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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.