Finding the Fourth Proportional to 130,518.73, 195,855.86 and 47,419.21
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Solution
The fourth proportional to 130,518.73, 195,855.86 and 47,419.21 is: 71,157.07
Step by Step Solution
- Step 1: Write the proportion equation
130,518.73 : 195,855.86 = 47,419.21 : x - Step 2: Convert to fraction form
130,518.73/195,855.86 = 47,419.21/x - Step 3: Cross multiply
130,518.73x = 195,855.86 × 47,419.21 - Step 4: Simplify right side
130,518.73x = 9,287,330,155.07 - Step 5: Solve for x
x = 9,287,330,155.07/130,518.73 - Step 6: Final answer
x = 71,157.07
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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.