Finding the Fourth Proportional to 130,266.60, 195,464.70 and 74,149.80
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Solution
The fourth proportional to 130,266.60, 195,464.70 and 74,149.80 is: 111,261.59
Step by Step Solution
- Step 1: Write the proportion equation
130,266.60 : 195,464.70 = 74,149.80 : x - Step 2: Convert to fraction form
130,266.60/195,464.70 = 74,149.80/x - Step 3: Cross multiply
130,266.60x = 195,464.70 × 74,149.80 - Step 4: Simplify right side
130,266.60x = 14,493,668,412.06 - Step 5: Solve for x
x = 14,493,668,412.06/130,266.60 - Step 6: Final answer
x = 111,261.59
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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.